| Names | |
|---|---|
| Preferred IUPAC name | sodium 4-butoxybenzoate |
| Other names | Butyl p-hydroxybenzoate Butylparaben Butyl 4-hydroxybenzoate Butyl para-hydroxybenzoate sodium salt Sodium butyl 4-hydroxybenzoate |
| Pronunciation | /ˈsəʊdiəm ˌbjuːtɪlˈpærəˌbɛn/ |
| Identifiers | |
| CAS Number | 36457-20-2 |
| Beilstein Reference | 4175575 |
| ChEBI | CHEBI:9120 |
| ChEMBL | CHEMBL1409467 |
| ChemSpider | 15992 |
| DrugBank | DB14042 |
| ECHA InfoCard | 03b86e3f-360b-4c9a-9789-59d003a53fcb |
| EC Number | 208-586-9 |
| Gmelin Reference | Gmelin Reference: **137852** |
| KEGG | C14352 |
| MeSH | D017367 |
| PubChem CID | 23665782 |
| RTECS number | WN0125000 |
| UNII | 07R6YE3IJS |
| UN number | UN2811 |
| Properties | |
| Chemical formula | C11H15NaO3 |
| Molar mass | 194.22 g/mol |
| Appearance | White crystalline powder |
| Odor | Odorless |
| Density | 1.17 g/cm³ |
| Solubility in water | Slightly soluble in water |
| log P | 0.59 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 8.47 |
| Basicity (pKb) | 14.36 |
| Refractive index (nD) | 1.507 |
| Viscosity | Viscous liquid |
| Dipole moment | 2.44 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 489.7 J·mol⁻¹·K⁻¹ |
| Pharmacology | |
| ATC code | A01AB17 |
| Hazards | |
| Main hazards | May cause eye, skin, and respiratory irritation. |
| GHS labelling | GHS07, Warning, H315, H319, H335, P261, P305+P351+P338, P332+P313 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H319: Causes serious eye irritation. |
| Precautionary statements | Precautionary statements: "P261, P264, P270, P271, P272, P273, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P330, P332+P313, P333+P313, P337+P313, P362+P364, P403+P233, P405, P501 |
| Flash point | > 150 °C |
| Autoignition temperature | 400°C |
| Lethal dose or concentration | LD50 Oral Rat 4750 mg/kg |
| LD50 (median dose) | LD50 (oral, rat): 16,000 mg/kg |
| PEL (Permissible) | Not established |
| REL (Recommended) | 0.05 % |
| Related compounds | |
| Related compounds | Methylparaben Ethylparaben Propylparaben Butylparaben Sodium methylparaben Sodium ethylparaben Sodium propylparaben |
| Attribute | Manufacturer Observations & Commentary |
|---|---|
| Product Name & IUPAC Name |
Product Name: Sodium Butylparaben IUPAC Name: Sodium 4-butoxycarbonylphenolate |
| Chemical Formula |
C11H13NaO3 Formula assignment confirmed by in-process QC using validated analytical reference, with sodium cation presence ensured at neutralization. |
| Synonyms & Trade Names |
Synonyms: Sodium butyl p-hydroxybenzoate, Sodium butyl parahydroxybenzoate Trade Names: Trade name use depends on downstream repackaging or technical grade specification by customer channel. |
| HS Code & Customs Classification |
HS Code: 29182900 Customs declaration aligns to aromatic carboxylic acid derivatives, not to paraben esters alone, so classification scrutiny is part of every customs pre-clearance. Actual declaration depends on both import regulations and associated documentation accuracy. |
| Topic | Manufacturer Commentary |
|---|---|
| Raw Material Selection | Industrial production draws butylparaben from a validated supplier base; sodium hydroxide source control aims for minimal trace metal content. Downstream impact of any trace contaminants is highest in high-purity and pharma grades but also relevant for cosmetics under regional requirements. |
| Process Route Selection | The sodium salt is generated by direct neutralization, typically in aqueous or hydroalcoholic solution. Route choice reflects cost, batch size, downstream requirements (solution or solid form), and target impurity cut-offs. |
| Key Control Points | pH adjustment at the salt-forming step, temperature control to avoid hydrolysis, trace sodium carbonate monitoring pre-drying. Control strategies adjust based on the expected impurity profile: cosmetic/food grades require lower residual organic and inorganic content versus technical grades. |
| Impurity Generation & Purification | Impurities generally originate from unreacted acid, sodium excess, organic by-products, or water-insoluble fines. Manufacturer purification methods include filtration, recrystallization, or solvent stripping depending on the observed impurity profile and downstream tolerance. Specification tightening occurs if required by the application, such as parenteral-excipient or certain food-contact uses. |
| Batch Consistency & Release Criteria | Consistency monitored by both chromatographic purity and sodium quantification. Batch release thresholds depend on customer and regulatory standards. For critical applications, additional tests on microbial load and trace metals are performed, by agreement with the customer or as defined in relevant pharmacopeial monographs, if applicable. |
Hygroscopic behavior impacts storage protocols: Sodium butylparaben attracts moisture when exposed, so all production lots undergo moisture analysis before drum or bagging operations. Handling procedures differ if product is supplied as a dry powder, granule, or in solution. Customers processing into finished products—especially aqueous formulations—should account for potential pH shift and solubility at use concentration, which shifts depending on excipient blend, temperature, and batch-to-batch particle size.
In industrial production, sodium butylparaben is typically isolated as a fine powder or crystalline solid. Color can range from nearly white to an off-white hue, depending on grade and impurities. Commercial batches exhibit faint or no odor. Melting point is grade-dependent and can shift slightly based on manufacturing residuals or crystal hydration. Boiling point data is less relevant as the compound decomposes before reaching this phase transition under normal atmospheric conditions. Typical bulk density values fluctuate by particle size and compaction level, and are routinely monitored in the QC workflow to ensure reproducibility in large-scale batches.
Chemical stability relies heavily on avoidance of moisture ingress and uncontrolled pH swings during storage. The benzoate ester backbone resists mild oxidation but hydrolyzes under strongly basic or acidic conditions, generating butanol and the parental acid salt. Reactivity in finished form revolves around hydrolysis risk and compatibility with formulation excipients, especially under heat or in the presence of strong bases or acids. Instability can arise during downstream processing if trace metal ions or peroxides are present in the formulation stream.
Sodium butylparaben demonstrates enhanced water solubility relative to the parent ester, making it suitable for aqueous formulations. Solubility is grade- and temperature-dependent; end-use applications may require pre-dissolution in warmed water or blending into non-aqueous phases before dilution. QC must control for insoluble particulates, which are often a result of incomplete neutralization or polymeric byproducts from the synthesis step.
Product specifications for sodium butylparaben are set based on application (e.g., pharmaceutical, personal care, industrial). Grades are differentiated by purity requirements, allowable moisture, and residual solvent content. Exact figures are not disclosed unless required by customer contract or regulatory submission. The final release standard is subject to internal quality control criteria and customer requirements.
Impurity controls focus on residual reactants (butanol, sodium hydroxide), byproducts (paraben ethers or esters), and reaction side products. Impurity profiles shift according to raw material source and synthesis route. Batch documents track impurity trends to verify process capability. Maximum allowable levels are established by grade and end-use specifications.
Analytical confirmation generally includes HPLC for purity and related substances, KF or loss on drying for moisture, and specific identification by IR or NMR as appropriate for the grade. Test methods follow either in-house validated protocols or those described in the relevant pharmacopeia if the batch is targeted for regulated markets.
Selection of raw materials focuses on purity, traceability, and consistency. Key precursors include butylparaben and sodium hydroxide of specified potency and controlled trace metal levels. Sourcing strategy prioritizes compliant vendors with consistent supply and a track record of low contamination or variable impurity load.
Sodium butylparaben manufacturing typically involves the direct neutralization of butylparaben with an aqueous sodium hydroxide solution, followed by downstream isolation. Reaction profile can shift if performed at scale, so temperature and reagent addition rates are tightly controlled to minimize local overheating and pH excursions.
Key control points include stoichiometric balance, complete neutralization, and removal of any colored or particulate impurities generated by side reactions. Purification often incorporates filtration and recrystallization, with solution pH adjusted to prevent product hydrolysis or crystallization of unwanted salts. Batch homogeneity is kept in check by in-line monitoring and post-crystallization sampling.
QC checks encompass identification, purity, moisture, and appearance parameters. Batch release occurs only after all tests align with internal and, where applicable, external customer specifications or regulatory requirements.
Chemical functionality revolves around the paraben moiety. Sodium butylparaben can participate in transesterification or etherification, especially under catalyzed high-temperature processes. Hydrolytic cleavage in strong acid or base yields butanol and the corresponding sodium salt of para-hydroxybenzoic acid.
Catalyst and solvent choices must balance reactivity against the stability of the ester and the safety profile of both intermediates and byproducts. Process temperature rarely exceeds moderate levels to avoid degradation. Reaction control relies on real-time pH and conductivity monitoring.
Process modifications can generate longer or branched alkyl parabens. Downstream, sodium butylparaben serves as a substrate for surface treatment, blending, or further functionalization, depending on formulation requirements.
Sodium butylparaben requires storage in cool, dry environments away from direct sunlight. Containers must seal against atmospheric moisture and should not react with product contents; high-density polyethylene drums are most common. Headspace gas protection is considered if the product is maintained over extended periods in partially filled containers.
Compatibility trials support drum or bag selection. Incompatibility with reactive metals or permeable polymers may compromise product quality, so packaging validation is integrated into the manufacturing transfer.
Shelf life is stated according to retained purity and functional performance in the intended system. Discoloration, caking, or abnormal odor can indicate hydrolysis, contamination, or container breach. Routine batch surveillance captures outliers and triggers re-testing or product withdrawal procedures as required.
GHS classification and labeling depend on purity and regional regulatory declarations. Typical industry handling does not anticipate acute toxicity at normal exposure levels, but local rules dictate specific labeling for irritation risk or chronic exposure.
Worker safety involves avoidance of dust generation and prolonged skin contact. Standard PPE includes nitrile gloves and protective eyewear. Installing dust extraction and monitoring workplace air is advised wherever powder handling occurs.
Acute and chronic toxicity profiles correlate to grade. Data is referenced from available toxicological literature and updated with results from regulatory surveillance. Handling recommendations align with documented exposure outcomes.
Exposure control strategies include equipment enclosure, local exhaust, and worker training. Exposure limits defer to local practice and current regulation, recognizing that airborne limits are set dynamically as the toxicological database evolves. Incident response protocols cover spills, inhalation, and skin contact, all documented in the site safety management system.
In industrial-scale production, actual output for sodium butylparaben aligns closely with market demand cycles and raw material supply streams. Major process bottlenecks involve the stability of butylparaben esterification yields, capacity of downstream neutralization, and the selectivity of purification. Batch-to-batch availability fluctuates with global production schedules, especially under tight supply chains for key intermediates.
Multi-shift operations and modular reactor capacity allow for schedule adjustments. Output allocations are committed based on advance commitments rather than speculative production. In periods of feedstock constraint, spot availability contracts meaningfully.
Lead time directly correlates to batch scheduling and plant occupancy. For standard grades, plant-to-dispatch period often depends on in-house inventory buffers, post-synthesis analytical release clearances, and the logistics pipeline. MOQ reflects operational economics and logistics cost efficiency—consistently higher for specialized grades or custom packaging requests. Spot order fulfillment is not guaranteed during peak season or if quality release cycles encounter deviations.
Bulk packaging is dictated by product stability, moisture sensitivity, and intended distribution channel. High-purity or pharmaceutical grades may use double-lined drums or antistatic bags, while technical and industrial grades often ship in standard fiber drums or high-density polyethylene containers. Packaging lot traceability supports downstream regulatory and customer audits. Tailored options involve additional lead time and cost premiums due to validation cycles.
Shipping terms generally match international incoterms, with risk and cost allocation set at plant gate, port of departure, or destination as per customer contract. Export restrictions and import regulatory scrutiny require advanced compliance review, particularly in markets with stricter paraben regulations. Standard payment windows reflect credit risk assessment and prior trading history; long-term offtake agreements may unlock better terms after credit verification.
Cost structure begins with para-hydroxybenzoic acid and butanol feedstock, which are subject to petrochemical value chain volatility. Neutralizing agents, utilities (steam, chilled water), and labor form secondary cost tiers. Downstream refining—especially in-house crystallization and filtration—adds incremental cost for higher-purity grades. Packaging, regulatory documentation, and third-party laboratory validations become more prominent for export-destined or pharma grades.
Raw material said price swings often stem from supply chain disruptions in upstream petrochemicals, refinery shutdowns, or freight rate spikes. Currency volatility can drive procurement costs upward for import-dependent plants. Regulatory clampdowns on key precursor chemicals also introduce substantial risk, occasionally causing price surges or unexpected allocation limitations.
Each certification layer—GMP-compliance, USP/Ph.Eur. monograph alignment, or REACH status—introduces process and analytical complexity, reflected in final price offers. Higher grades draw from narrower process windows and undergo increased in-process and final release testing, inevitably raising the cost basis. Custom pack sizes, tamper-evidence, or serialization protocols further segment pricing. Technical, cosmetic, and food/pharma grade releases are distinctly priced.
Highly purified or monograph-compliant grades command premiums due to extra purification and comprehensive analytical documentation. Grades with enhanced traceability or sustainability claims tend to attract additional cost layers. Certification by international bodies or region-specific authorities involves extended validation, often resulting in staggered delivery and incremental price steps over commodity technical grades.
Supply-demand equilibrium relates to consumer safety regulations, seasonal upticks from personal care production, and competing use in food or pharma formulations. Oversupply periods sometimes arise when multiple origin producers expand capacity simultaneously, while regulatory bans or market withdrawals compress demand sharply.
The US and EU markets regularly adjust demand profiles based on regulatory discussions over paraben safety in finished goods, making supply allocations unpredictable year-on-year. Japan tightly controls permitted preservative concentrations, resulting in smaller-volume but specification-strict purchase cycles. India and China continue as principal manufacturing and downstream consumption centers, yet also present the sharpest price competition due to local regulatory gaps and regional feedstock integration advantages.
If global regulatory convergence moves toward stricter paraben controls or labeling requirements, demand for differentiated, certified sodium butylparaben grades likely increases, adding upward price pressure. Feedstock volatility remains a persistent risk, driven by crude oil and specialty chemical sector cycles. Barring macro disruptions, gradual price appreciation looks probable for higher-purity, certified grades while commoditized technical grades may encounter oversupply-induced discounting.
Forecasts draw on internal order pipeline analytics, feedstock price monitoring, regulatory review bulletins, and peer industry published market data. Fluctuation analysis triangulates contract settlement reports, regional spot trends, and historical shipment flows. Forecast reliability varies based on regulatory clarity and raw material market stability.
Recent industry news points to sustained regulatory review of paraben content in personal care and pharmaceutical products. Ongoing inquiries in North America and the European Union focus on cumulative exposure thresholds and acceptable use cases. Several multinational brand owners have announced reformulation programs in response, temporarily reshaping demand for traditional and reformulated preservative grades.
A wave of new labeling and purity documentation requirements emerges from both EU REACH and FDA review cycles. Regulatory authorities in select regions now require more granular impurity profiling and supply chain traceability documentation, increasing compliance burden. Plants exporting to these regions undergo periodic system audits and must maintain transparent validation files for both process and analytical provenance.
Manufacturers pivot towards proactive engagement with regulatory bodies, implementing expanded impurity trending, stability studies, and third-party audit programs. Investment in process automation, online monitoring, and advanced purification platforms improves both batch consistency and release-to-ship cycle times. Alternate process routes and dual sourcing for key precursors help cushion against upstream supply shocks, while strategic inventory buffering addresses erratic regulatory review-induced delivery disruptions.
Sodium Butylparaben, produced through direct esterification and neutralization routes, finds use in formulated mixtures where both antimicrobial performance and regulatory acceptance are non-negotiable. In our manufacturing operations, most demand traces back to applications in personal care preservatives, industrial water treatments, and specialty coatings requiring low volatility and high thermal compatibility. Each industry sets its own bar for purity, solubility, and trace contaminant levels.
| Industry Sector | Typical Grade | Key Parameters | Industrial Observations |
|---|---|---|---|
| Personal Care | USP/NF or Cosmetic | Microbial purity, low residual solvents, compatibility with emulsions | Batch consistency and minimized odor profile are critical. Microbial count and allergenic impurities draw scrutiny from regulators and end users alike. Grades for this sector often require validated allergen controls and robust documentation packages for formula submissions. |
| Industrial Water Treatment | Technical | Assay, solubility in blends, cost-to-performance ratio | Value-driven users accept higher total organic residues when weighed against dosage economics. Contaminant thresholds run higher, but overshooting baseline process impurities can cause carryover downstream, impacting both equipment and treated water acceptability. |
| Specialty Coatings | Industrial, Low-Volatile | Impurity control (especially non-volatile organic content), flowability | Material handling is sensitive to moisture content and melt behavior. Consistent particle size reduces clumping during batch incorporation. Impurity profiles—especially acidic byproducts—can alter the finished coating’s pH stability and shelf life. |
Identifying end use establishes critical parameters early. High-purity needs for skin-contact or ingestible products stand in contrast to cost-driven bulk chemical supply. Our technical team reviews each customer’s formulation expectations to vet compatibility and performance risk up front.
Regulatory mapping links the application field to local and global governance—FDA, REACH, and similar frameworks. Navigating this early avoids compliance gaps. Grades intended for regulated markets move through additional trace impurity screening and document trails, extending from batch records to change control logging.
Purity starts with raw material selection. Food, pharmaceutical, or cosmetic grades warrant high-purity feedstocks with traceability back to source manufacturers. In-process purification adjusts based on downstream application—cosmetic-grade streams supplement mechanical filtration with additional activated carbon polish steps. Technical users, by comparison, tolerate some carryover as long as this does not impact their own process outputs.
Production scale shifts the balance between batch processing and continuous lines. Smaller, specialty users often require tight batch control for lot-specific test results. Larger industrial users negotiate supply based on volume discounts and predictability, usually accepting broader assay and impurity bands unless their finished product sensitivity requires otherwise.
Every application introduces its own performance variables. Validation lots gauge whether specified grade meets real-world formulation or processing targets. Sample analysis helps uncover if trace impurities, particle sizing, or residual solvents create unanticipated behavior under end-use conditions. Internal QC supports this by aligning every validation to precise specification sheets provided in advance.
Production of Sodium Butylparaben runs under established quality management systems, with core operations documented according to internationally recognized standards. Consistency between batches rests on foundation processes built with traceable raw materials and audited production workflows. Internal audits and external certification reviews ensure every control checkpoint meets regulatory and customer expectations. The process audit pathway captures adjustments made during scale-up or transition between grades, giving transparency for customers reviewing the plant’s capacity to maintain new regulatory or market-driven requirements.
Certifications specific to Sodium Butylparaben depend on both the intended application and the regulatory region. Pharmaceutical, food, and personal care grades may require documentation of compliance with pharmacopeia or food additive status in addition to system-level certifications. Typically, these certifications reference both the quality system and the batch-specific data as released from the production line, with supporting traceability to all major reagents and processing aids. Any deviation, whether for internal non-conformance or customer specification change, is logged and archived for audit review.
Technical documentation accompanies each shipment and can be customized by grade or application end-use. Purity analyses, impurity profiles, and batch analytical data form the backbone of the release package. Certificate of Analysis and regulatory compliance statements detail method reference and release criteria, referencing both internal and customer-specific standards. Batch retain samples and regulatory reports are available for retrospective analysis and customer audits as required by long-term supply agreements. Where grade or route dictates a particular focus, such as low impurity levels for sensitive applications, additional documentation may be produced upon request.
Ongoing production planning is aligned with customer order patterns and market signals, drawing from process capacity and raw material reserve management systems. Core manufacturing assets provide predictable output, with scale-up capacity held in reserve for customer projects requiring higher or more variable volume. Flexible business terms can adapt to market or regulatory uncertainty, supporting both short-term spot requirements and long-term framework agreements.
Production lines are engineered for uninterrupted operations with dual-source raw materials and automated line monitoring. Selection of raw material grades—based on both analytical profile and sourcing reliability—addresses both regulatory-driven purity demands and cost targets. Adjustment of batch size or cleaning protocol deployment allows for rapid transition between application-specific product variants. Customers benefit from this flexibility by tailoring procurement planning to suit demand cycles.
Sample requests begin with customer-specific intake—defining the desired grade, application, and relevant analytical requirements. Samples are drawn from production scale runs to reflect batch consistency, with accompanying analytical and regulatory documentation. Technical support guides sample handling, storage, and evaluation based on known grade sensitivities—such as moisture or contamination risk—and can support side-by-side comparisons for customers shifting suppliers or upgrading end-product specifications.
Manufacturing and supply teams cooperate directly with partners to align stocking models, logistics scheduling, and batch reservation conventions. Cooperation modes range from fixed-volume, calendar-based delivery to on-demand, just-in-time supply, including options for consignment stock. Each cooperation plan negotiates built-in technical support, quality revalidation triggers, and sample retest criteria, creating a direct line of communication for adjustment as end-market or formulation demands change. This approach assures technical, quality, and logistical alignment at every step in the procurement cycle.
Sodium butylparaben production focuses on process control and purity enhancement. Producers are selecting raw materials with consistent chain length and minimal side-reactivity. The esterification and neutralization stages often dictate final impurity profiles, particularly the presence of residual butyl alcohol and by-product salt. Some development teams examine alternative base reagents for neutralization to influence crystal form and solubility. Downstream, the shift toward water-soluble preservative systems puts pressure on manufacturers to deliver particle size distributions tailored to rapid dissolution in various media.
Some formulators in personal care and pharmaceuticals explore sodium butylparaben for broader pH-range antimicrobial activity. The interest in paraben blends arises from regulatory and consumer scrutiny; the technical challenge is cross-compatibility with surfactants, emollients, and actives in low-water or high-electrolyte environments. For industrial uses, attention moves toward compatibility in water-based resin systems and hydraulic fluids, with ongoing trials for stability in specialty adhesives and coatings.
The production process must manage by-product sodium salts, color bodies, and odor-causing fragments; real-time analytics and improved filtrate recycling target batch uniformity. In some regions, stringent impurity thresholds require multi-step purification. Manufacturers face the challenge of reducing trace organic residuals and controlling sodium ion content depending on application—pharmaceutical or topical ingredient specifications differ sharply from industrial requests. Breakthroughs involve enzymatic synthetic approaches and continuous flow esterification, both of which show promise in yield enhancement and narrower impurity spectra.
In the next few years, demand will respond to shifts in finished product regulations and consumer acceptance of paraben technologies. The sector anticipates moderate growth in regions where regulatory review remains favorable and in segments needing robust preservation with minimal sensory impact. Pharmaceutical grades will demand more documentation and traceability, affecting the entire value chain’s audit readiness and compliance capabilities. Customization for regional preservative regulations and evolving formulator requirements will influence plant scheduling and batch traceability systems.
Process intensification will drive shorter cycle times and reduced solvent consumption. Automated in-process controls, such as in-line HPLC or NIR monitoring, are replacing end-point hand sampling for both quality and efficiency. Sustainability initiatives encourage the use of bio-based raw butyl alcohol and greener neutralization strategies. As supply chains press for full material transparency, continuous improvement cycles now address both carbon footprint and traceable sourcing of feedstocks without compromising lot consistency.
Transitioning to greener synthesis routes means close evaluation of waste salt handling and solvent recovery systems. Renewable sourcing of raw aliphatic alcohol offers potential to lower GHG emissions, provided batch properties remain in spec. Options for reducing wastewater load from washing and purification are under pilot evaluation, aiming for water loop closure and minimized discharge to onsite treatment. Compliance with ecotoxicological guidelines affects both product stewardship statements and downstream handling recommendations.
Manufacturers’ technical teams provide end-use consults focusing on grade choice, validation support, and specification alignment. Recommendations rely on actual test data and past incident reports. Every application—whether a hydrophilic gel or solventborne paint—has different requirements for solubility, compatibility, and impurity ceiling. Problems such as grit, haze, or incomplete incorporation are examined at both plant and application site, with feedback informing process adjustments.
Support services drill down into dose response, stability curves, and analytical validation for customer-specific matrices. If a batch shows property deviation, root-cause analysis considers everything from charge ratios and batch sequence to final milling or drying regime. For global users, guidance also addresses local water chemistry impact, ensuring preservative distribution remains consistent during mixing, regardless of equipment or process water source. Detailed guidance on blending strategy and order of addition is offered to avoid precipitation or degradation issues in complex emulsions or fluid phases.
After-release, the manufacturer’s technical team maintains records of lot performance, customer complaints, and regulatory status per region. Replacement or adjustments follow traceability protocols established during batch certification. If market requirements or standards shift, manufacturers provide proactive notification and adaptation plans to registered customers. Commitment extends to archiving analytical data and providing formulation troubleshooting, ensuring that customers meet both regulatory and in-market performance claims throughout the approved shelf life window.
Manufacturing sodium butylparaben requires exacting process control and consistent raw material quality. Our facility handles each stage from synthesis through to quality checks and packing. By overseeing every step, we prevent raw material variability and batch-to-batch drift. Production uses dedicated reactors, calibrated dosing equipment, and purification steps to achieve steady assay values and low impurity profiles.
Sodium butylparaben finds widespread use in personal care, pharmaceutical, and industrial formulations. Customers in preservative systems, solid dosage manufacturing, and water-based coatings rely on specifications with predictable pH stability and long shelf life. Our processes minimize moisture uptake and ensure reproducible particle size, supporting trouble-free dispersions and accurate downstream dosing.
Routine finished product testing involves validated methods for identity, purity, remaining solvent, and microbial contamination. Quality supervisors compare every lot against established product benchmarks. All material undergoes a retain sampling program, giving traceability to support regulatory or customer reviews. Because process data is logged and reviewed in real time, out-of-trend events trigger investigation before shipment.
Customers select sodium butylparaben in multiple packaging options, including lined fiber drums and secure pails suitable for bulk handling. Packaging lines integrate dust control and tamper evidence. Large-volume buyers coordinate with our logistics team for forward inventory positioning and regularized release, supporting uninterrupted production schedules.
Many industrial buyers require technical input on how sodium butylparaben performs under diverse processing conditions. Factory chemists assist with compatibility trials, troubleshooting blending or solubility issues, and meeting regulatory audit requests. Field feedback often results in minor process adjustments, guided by customer insights and technical performance requirements.
Production planning emphasizes supply reliability with clear lead times and transparent inventory signals. Consistent availability reduces the risk profile for downstream users and helps procurement teams meet strict batch traceability and documentation standards. For distributors, our approach simplifies forward planning and improves order fill rates. Facilities with compliance demands benefit from our retained sample program and full regulatory documentation support.
Direct oversight of sodium butylparaben manufacturing enhances every buyer’s position in the value chain. By deploying robust process control, application guidance, and coordinated supply, we strengthen both end-user confidence and intermediary business performance.
Sodium Butylparaben remains one of the reliable preservatives for personal care formulators. Our factory specializes in its production for industrial use, with a clear focus on purity, assay results, and batch consistency demanded by large-scale cosmetic clients. Each time we prepare a batch for shipment, our QC lab relies on direct wet-chemistry and instrumental methods, working to values that have become the industry benchmark. Testing doesn’t just finish with the assay—every lot faces checks for pH, moisture, and specific contaminants relevant for sensitive skin contact products.
We manufacture Sodium Butylparaben to match industry-accepted purity ranges. Our process targets a minimum assay value of 98% on a dried basis. Routinely, tests of production batches show results between 99.0% and 100.5%, confirmed by both titrimetric and HPLC analysis. We do not blend, adulterate, or stretch our lots—each drum carries an assay traceable to batch records, not an average.
Our finished material exhibits low moisture, typically under 1.0%, with strict limits on heavy metals (maximum 10 ppm lead and below 5 ppm arsenic). Most cosmetic applications require colorless or faintly off-white powders, and our process reduces impurity coloration to keep the sodium salt free of tints that could affect sensitive formulations like light creams and lotions.
From experience, we have seen how subpar quality can interrupt batching and scaling processes for our customers. A deviation of even half a percent reduces shelf-life protection or causes failed microbial testing. Contaminants lead to visible spotting or unexpected viscosity changes, drawing unwanted scrutiny from regulatory bodies. High purity isn’t just a number—it determines how a preservative dissolves, mixes, and defends a formula against spoilage without irritating skin or destabilizing actives.
We also monitor residual solvents and breakdown products unique to most synthesis steps. Our reports routinely cover volatile matter and confirm that no ethyl or methyl parabens substitute the butyl analogue. Customers have flagged cases from other producers using mixed paraben sources, but our reactors run single-paraben synthesis for every campaign.
Every lot ships with a Certificate of Analysis reporting actual assay, loss on drying, pH (1% aqueous), and key impurity levels. These values hold up to the scrutiny of leading cosmetics houses, and our documentation process supports full traceability in audits. Extensive and direct familiarity with international regulation (such as the limits established by the EU Cosmetics Regulation and US FDA) has shaped the way our operators monitor lot uniformity batch after batch.
If formulators report incompatibility, the solution often lies in re-checking pH, solvent choice, or handling—but it starts with a preservative that meets real world assay docs. Our technical team regularly consults with production chemists in the field, sometimes revalidating material with split samples and side-by-side blending. Where water hardness or variable surfactant systems pose problems, clean sodium butylparaben makes all the difference.
As the direct manufacturer, we continuously invest in process upgrades, from raw material selection to final micronization. In the end, supplying consistent, high-purity Sodium Butylparaben maintains our relationship with some of the largest global cosmetic brands. Detailed specifications and support are available along every truckload shipped from our facility.
Over many years of building capacity and testing processes, our team has seen a growing demand for Sodium Butylparaben, particularly among manufacturers in personal care, pharmaceuticals, and specialty coatings. The issue of bulk packaging and minimum order quantity comes up often, especially as companies streamline procurement and look to control raw material costs. This is where direct engagement with a manufacturer becomes most valuable.
We manufacture Sodium Butylparaben at an industrial scale, which lets us accommodate a range of packaging requests. Our standard bulk options usually include fiber drums with poly liner, polyethylene-lined bags, or high-barrier sacks, each built to protect product integrity during both transit and storage. For customers operating in climates with excessive humidity or temperature fluctuation, we recommend sealed composite containers to reduce risk of degradation, and these are available on request for larger contracts.
Our most common lot size for Sodium Butylparaben leaves the production line in 25 kg fiber drums. Many high-volume consumers, particularly contract manufacturers and formulators, prefer this format for ease of material handling and accurate weighing during batch preparation. For industrial processors handling greater throughput, palletized 500 kg or 1-tonne super sacks can greatly improve loading efficiency and reduce waste, both in terms of time and material. Our factory can meet these larger volume needs as part of regular production scheduling, with quality control checkpoints built in at each packaging step.
As the manufacturer, we focus our logistics and production on industrial and commercial customers. For Sodium Butylparaben, our minimum order quantity typically starts at one full drum, which is equivalent to 25 kg per order. For many clients, this small-lot flexibility is used for pilot runs, qualification trials, or R&D. Most commercial agreements, especially those tied to production planning at monthly or quarterly intervals, are specified at higher thresholds to capture value from both pricing and improved delivery consistency.
Long term partners who forecast demand with us regularly negotiate blanket orders, locking in both price and priority production scheduling for several months at a time. This arrangement supports clients’ own downstream commitments and secures their supply chain position, which has proven valuable during periods of raw material market volatility. Where an end user’s business depends on uninterrupted input, direct-from-factory supply enables clear traceability and technical support. These partnerships can also influence packaging specifications — we have customized drum labeling, barcode systems, or even packaging return programs for customers with strict SOP or sustainability policies.
Our technical team works with customers from initial qualification through to large-scale rollouts, ensuring specifications for Sodium Butylparaben meet not only relevant monographs but also the practical needs of each application. Any customer with questions about suitable packaging, specific order requirements, or supply continuity receives direct support — our scientists remain accessible throughout the relationship. With each order, we document production batch numbers and can provide a full Certificate of Analysis. For applications with heightened traceability constraints, we coordinate with buyers to provide any additional quality or regulatory files needed to support auditing or product registration.
Factory-direct supply reduces unnecessary handoffs, keeps communication clear, and gives buyers confidence their raw material will arrive as specified. As producer, we remain accountable from raw input through to finished drum, supporting our customers’ business with reliable supply options and responsive technical service, no matter the order size.
Shipping Sodium Butylparaben across international borders always brings questions about compliance, safety, and accountability. As a manufacturer with years of direct experience handling every aspect from synthesis to delivery, we know these regulations shape not only documentation but also production processes and packaging decisions. REACH compliance and FDA requirements both place heavy responsibility on the manufacturer, not just at the point of shipment, but from the earliest stages of production.
For substances moving into the European Union, REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) offers a tightly structured regulatory environment. Every batch of Sodium Butylparaben leaving our facility runs through predefined manufacturing protocols. Our technical team maintains registration records with the European Chemicals Agency (ECHA) and evaluates each batch for conformity before any packaging occurs. Constant analysis and regular reviews of legal texts are part of our daily workflow, not just an annual paperwork exercise.
To meet FDA expectations, we review our production processes and raw materials for alignment with food and drug-grade standards. The FDA mandates clear documentation on purity, grade, and possible contaminants. Our lineup of in-process controls covers every critical point. Certificates of analysis follow each shipment with batch-specific data, confirming that our product meets not only U.S. import standards but also the needs of clients relying on accurate, timely information.
Shipping regulations for Sodium Butylparaben don’t end at the warehouse door. We build every shipping unit using certified packaging that performs in real-world transit, tested under temperature and humidity cycles that reflect ocean and air freight. Labels on all containers state the chemical identity, hazard information, and emergency procedures in multiple languages—a rule, not an exception, for overseas trade. Our carriers meet international transport standards for chemicals, and our logistics team always selects routes and partners with experience managing restricted and controlled substances.
Many ask about the differences between regulations. While REACH focuses on pre-market obligations and ongoing product safety in the supply chain, the FDA presses for assurance that every incoming shipment poses no threat to the end user. Our quality assurance group maintains an evolving compliance checklist so that shipments never fall out of step with the latest legal updates. Audits, both internal and by competent authorities, serve as checkpoints rather than afterthoughts. Operating strictly as a producer, we have full visibility into every step and do not rely on downstream parties for compliance guarantees.
Challenges in international shipments sometimes arise as regulations evolve, transport networks adapt, or trading partners introduce new requirements. Maintaining open dialogue with authorities and logistics partners helps chart a clear, safe path for every consignment. Transparent communication with our clients ensures they know what compliance steps occur for each order. As regulations shift, our in-house compliance team is prepared to quickly update documentation or packaging to match new protocols.
Reliable documentation, persistent oversight, and hands-on control over logistics distinguish the manufacturer’s approach from indirect suppliers. Every drum, carton, or intermediate bulk container leaving our facility passes through in-house checkpoints without exception. Our experience proves that direct manufacturer engagement—from raw materials to delivered goods—is the most effective way to meet or exceed both REACH and FDA regulatory requirements in every shipment of Sodium Butylparaben.
For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales3@ascent-chem.com, +8615365186327 or WhatsApp: +8615365186327
