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View Product DetailA precision-synthesized substituted benzoic acid derivative critical for next-generation green cosmetics, active pharmaceutical ingredients (APIs), and advanced crystalline liquid displays.
4-Methoxybenzoic Acid (commonly referred to as p-Anisic Acid, 4-Anisic Acid, or Draconic Acid; IUPAC Name: 4-methoxybenzoic acid) bears the molecular formula C8H8O3 with a molar mass of 152.15 g/mol. Characterized by a stable methoxy group (-OCH3) positioned para to the electron-withdrawing carboxylic acid moiety (-COOH), it exhibits remarkable chemical stability, natural anti-microbial potency, and structural versatility as an aromatic building block.
| Analytical Parameter | Pharma Intermediate Grade | Cosmetic Multi-Functional Grade | Liquid Crystal / Electronic Grade | Standard Test Methodology |
|---|---|---|---|---|
| Appearance | White crystalline powder | White to off-white needles | Pure ultra-fine white powder | Visual / EP 2.2.1 |
| HPLC Assay (Dry Basis) | ≥ 99.0% | ≥ 99.5% | ≥ 99.85% | High-Performance Liquid Chromatography |
| Melting Point Range | 182.0 °C – 185.0 °C | 183.0 °C – 185.0 °C | 184.0 °C – 185.2 °C | Capillary Melting Method (USP <741>) |
| Loss on Drying | ≤ 0.50% | ≤ 0.30% | ≤ 0.15% | Thermogravimetric Drying at 105 °C |
| Residue on Ignition | ≤ 0.10% | ≤ 0.05% | ≤ 0.02% | Sulfated Ash (USP <281>) |
| Heavy Metals (Pb, As, Hg, Cd) | ≤ 10.0 ppm | ≤ 5.0 ppm Total (Pb < 2ppm) | ≤ 1.0 ppm Total | ICP-MS Inductively Coupled Plasma |
| Related Impurities (Phenol, etc.) | Individual ≤ 0.2%, Total ≤ 1.0% | Individual ≤ 0.1%, Total ≤ 0.5% | Individual ≤ 0.05%, Total ≤ 0.15% | GC-MS / HPLC Peak Area Normalization |
How stringent ESG frameworks, "clean beauty" mandates, and pharmaceutical API innovation are reshaping the multi-million-dollar demand for high-purity p-Anisic Acid.
Global cosmetic regulatory bodies, including EU REACH and California Proposition 65, have heavily scrutinized classical parabens, formaldehyde-releasers, and halogenated preservatives. 4-Methoxybenzoic acid has emerged as the global industry benchmark for organic acid-based multi-functional antimicrobial protection, offering broad-spectrum fungicidal activity alongside skin-masking benefits.
Pharmaceutical contract manufacturers (CDMOs/CMOs) in North America, Europe, and India increasingly specify p-Anisic acid as a core synthon for nootropic compounds (Aniracetam), dermatological actives, respiratory stimulants, and anti-tubercular agents. The requirement for zero mutagenic impurity profiles has elevated demand for validated cGMP-grade manufacturing.
The electronics sector utilizes high-purity 4-methoxybenzoic acid derivatives to synthesize thermotropic and nematic liquid crystal mesogens. The compound's structural rigidity, coupled with the polarizable methoxy-carboxyl dipole, enables precise dielectric anisotropy required for ultra-responsive LCD matrices and optical filters.
From dermatological bio-preservation to chemical intermediate synthesis: detailed parameter engineering and dosage recommendations.
Primary Function: Multi-functional antimicrobial booster, pH-dependent fungicidal stabilizing agent, and natural masking fragrance component.
Recommended Dosage: 0.10% – 0.35% (w/w).
Formulation Dynamics: Exhibits maximum microbiological efficacy at pH 4.5 – 5.5, where the non-ionized acid form effortlessly permeates microbial cell membranes, inhibiting cytoplasmic enzymatic respiration without causing dermal irritation or trans-epidermal water loss (TEWL).
Primary Function: Core raw material for Aniracetam, trimethoprim structural analogs, and vascular-active APIs.
Reaction Pathways: Undergoes chlorination via thionyl chloride or oxalyl chloride to form 4-methoxybenzoyl chloride (anisoyl chloride), a key electrophilic intermediate for Friedel-Crafts acylation and amide condensation reactions under strict solvent-controlled temperatures.
Primary Function: Precursor for methyl, ethyl, and phenethyl p-anisates used in floral perfumes (lilac, hawthorn, heliotrope) and food-grade flavorants mimicking anise, vanilla, and cherry.
Purity Requirement: Must possess a clean sensory profile free from chlorinated aroma artifacts or phenolic residual notes.
Primary Function: Thermal chain stabilizer in polyamides, polyesters, and metal-protective surface coatings.
Mechanism: The electron-rich aromatic nucleus forms stable coordinated chelate films on non-ferrous alloy surfaces (copper, zinc), preventing oxidative pitting in industrial water-cooling towers and high-performance electroplating baths.
Transitioning from traditional stoichiometric oxidation to automated continuous-flow catalytic microreactors with minimal environmental footprint.
The leading industrial scale-up pathway. Employs atmospheric oxygen or low-pressure pure O2 in the presence of cobalt-manganese-bromide (Co/Mn/Br) catalyst matrices. This replaces toxic permanganate/dichromate oxidants, reducing hazardous inorganic solid salt waste by 92% and achieving atomic selectivity greater than 96.5%.
Our modernized manufacturing plant utilizes continuous micro-channel tubular reactors for electrophilic methoxylation and oxidation. The micro-reactor design affords extreme heat-transfer coefficients (up to 20,000 W/m²·K), virtually eliminating local hot spots, dramatically suppressing thermal runaway risks, and preventing secondary decarboxylation.
Forward engineering programs focus on bio-catalytic laccase/mediator systems and electro-catalytic methoxylation of phenol-derived lignins. By utilizing closed-loop solvent regeneration systems (over 98% recycled acetic acid/methanol recovery), our factory aligns directly with global Scope 1 & Scope 2 decarbonization objectives.
Discover how Hebei Miaoou Technology integrates raw material upstream assets, large-scale automated warehousing, and multi-tier logistics to mitigate international procurement risks.
Direct pipeline linkage to bulk aromatic precursors (toluene, anisole, basic alcohols) inside designated national chemical parks insulates production schedules against volatile raw material swings.
Every commercial batch is matched to full-spectrum analytical release documents: gas chromatography (GC), HPLC purity assays, ICP-MS trace metal screenings, and FTIR molecular fingerprints.
From 1kg fluorinated vacuum foil pouches to 25kg UN-rated fiber drums with double anti-static polyethylene liners, fully customized to meet global hazmat and non-hazmat sea/air cargo safety.
Complete customs and regulatory clearance packages: Certificate of Analysis (COA), 16-section GHS Safety Data Sheet (SDS), Technical Data Sheet (TDS), BSE/TSE-Free, and Non-GMO certifications.
Ensuring frictionless international trade across Europe, the Americas, Asia-Pacific, and the Middle East through proactive regulatory alignment.
4-Methoxybenzoic acid is supported with tonnage-appropriate registration dossiers, complete toxicological endpoints, and certified exposure scenarios, ensuring compliance for European importers and chemical formulators.
Complies with the US Toxic Substances Control Act (TSCA) Inventory requirements. For cosmetic applications, technical files include full safety data matching the Personal Care Products Council (PCPC) guidelines and INCI standards.
Manufactured in facilities audited under ISO 9001:2015 Quality Management Systems and ISO 14001:2015 Environmental Systems. Comprehensive change-control management guarantees uninterrupted batch-to-batch consistency.
Addressing the technical, regulatory, and supply chain queries chemical engineers and procurement directors ask before issuing purchase orders.
4-Methoxybenzoic acid is poorly soluble in cold water (~0.3 g/L at 20 °C) but demonstrates significantly higher solubility in boiling water (~8 g/L) and organic solvents including ethanol (approx. 1 g in 25 mL), diethyl ether, ethyl acetate, and acetone. In cosmetic emulsions, formulators typically pre-neutralize it with arginine, sodium hydroxide, or triethanolamine to yield soluble sodium anisate, or dissolve it in glycols (butylene glycol, propanediol) during the heated oil phase (75–80 °C).
Unlike parabens (methylparaben, propylparaben), p-anisic acid has demonstrated no estrogenic or endocrine-disrupting behavior in extensive dermatological assays. It is derived from or bio-identical to botanical sources (such as aniseed), making it compliant with COSMOS, ECOCERT, and clean-beauty retail exclusion lists. It delivers dual benefits as both an active aroma-masking agent and an effective preservation booster against molds and yeasts.
Every commercial consignment is dispatched alongside a comprehensive documentation suite: a batch-specific Certificate of Analysis (COA) detailing HPLC assay and impurity breakdown, an updated 16-section REACH/OSHA-compliant Safety Data Sheet (SDS), Technical Data Sheet (TDS), BSE/TSE declaration, allergen statement, and custom origin declarations for expedited customs clearance.
Yes. Beyond standard crystalline needles, our facility provides custom jet-milling and sieving to deliver micronized grades (D90 < 20 μm) designed for rapid dissolution in cold-process personal care lines and pharmaceutical tablet compression. Packaging formats range from 1 kg vacuum-sealed sample pouches up to 500 kg woven big bags with moisture-barrier inner liners.
4-Methoxybenzoic acid is chemically stable under normal conditions. It should be stored in tightly sealed original containers away from direct sunlight, excessive heat, and incompatible strong oxidizing agents. Recommended storage temperature is 15 °C to 25 °C in a dry, well-ventilated warehouse. Under recommended conditions, the material maintains a certified shelf life of 24 to 36 months.
Our Hebei manufacturing complex operates continuous-flow reactors with an annualized output exceeding 2,500 metric tons of substituted benzoic acid derivatives. Standard stock orders are packaged and staged for port delivery (Tianjin / Qingdao / Shanghai) within 3 to 7 business days, while customized synthesis orders typically ship within 14 calendar days.
Verified pharmaceutical reference standards, peptide sequences, and specialty biochemicals available for immediate global dispatch.
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