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2,3,4-Trimethoxyphenylacetic Acid

    • Product Name 2,3,4-Trimethoxyphenylacetic Acid
    • Alias 2,3,4-TMPAA
    • Einecs 242-687-2
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    474213

    Chemical Name 2,3,4-Trimethoxyphenylacetic Acid
    Cas Number 5324-84-5
    Molecular Formula C11H14O5
    Molecular Weight 226.23 g/mol
    Appearance White to off-white solid
    Melting Point 128-130°C
    Boiling Point No data available (decomposes)
    Solubility Soluble in methanol, DMSO; slightly soluble in water
    Purity Typically ≥98%
    Density 1.246 g/cm³
    Smiles COC1=CC(=C(C(=C1OC)OC)CC(=O)O)
    Synonyms 2,3,4-Trimethoxybenzeneacetic acid
    Pka ~4.2 (carboxylic acid group)
    Storage Temperature Store at room temperature
    Refractive Index No data available

    As an accredited 2,3,4-Trimethoxyphenylacetic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 25-gram amber glass bottle securely sealed, labeled “2,3,4-Trimethoxyphenylacetic Acid,” includes hazard warnings and lot number.
    Shipping 2,3,4-Trimethoxyphenylacetic Acid is shipped in tightly sealed containers, protected from moisture and light. Packaging complies with chemical transport regulations to prevent leaks or contamination. The product is labeled with necessary hazard and handling information, shipped via reliable carriers, and accompanied by safety documentation such as SDS for secure delivery.
    Storage 2,3,4-Trimethoxyphenylacetic Acid should be stored in a tightly sealed container, away from moisture and direct sunlight. Keep it in a cool, dry, and well-ventilated place, preferably at room temperature. Ensure the chemical is kept away from incompatible substances such as strong oxidizing agents, and label all containers clearly to avoid confusion and ensure safe handling.
    Application of 2,3,4-Trimethoxyphenylacetic Acid

    Applications of 2,3,4-Trimethoxyphenylacetic Acid in Industrial Manufacturing

    As the direct manufacturer of 2,3,4-Trimethoxyphenylacetic Acid, we supply this specialty aromatic intermediate to global partners involved in advanced chemical synthesis. Below are the primary industrial application sectors where this compound plays an essential role in downstream production. Each section outlines industry-specific compliance, formulation guidelines, integration stages, and representative finished products.

    1. Pharmaceutical Intermediates for CNS Active Ingredients

    2,3,4-Trimethoxyphenylacetic Acid represents a core building block in pharmaceutical manufacturing, especially for the synthesis of central nervous system (CNS) drug intermediates. Many active pharmaceutical ingredients (APIs) depend on this raw material as a key side-chain intermediate, contributing to diverse benzylamine and phenethylamine derivatives used in the final therapeutic compounds. Its strict purity and traceability are critical to regulatory submissions, while the specific incorporation occurs during protected amide coupling and reduction stages.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP/NF and EP monographs for relevant API classes
    • FDA 21 CFR Part 211 (cGMP for finished pharmaceuticals)
    • ISO 9001 Quality Management System (for intermediate manufacturing)

    Typical usage ratio

    • Ranges from 0.6 to 1.2 molar equivalents based on API synthesis pathway and target yield. Exact ratio tailored during pilot validation depending on the coupling efficiency and downstream loss minimization requirements.

    Downstream process integration

    • Introduced at the amide formation stage as an acylating agent or as a protected carboxylic precursor. In multi-step syntheses, added before reductive amination or halogenation as required by the specific CNS active structure. Reaction conducted in controlled conditions to avoid isomer formation.

    Final product types

    • Pharmaceutical intermediates for psychoactive API synthesis (e.g., tolcapone derivatives)
    • Purified CNS drug substance batches
    • Clinical trial materials for neurological disorder treatments
    • Commercial API lots for export and local market submission

    2. Advanced Agrochemical Synthesis

    This aromatic acid is directly utilized in the custom synthesis of selective herbicide and fungicide intermediates. Its electron-rich aromatic structure enables specific functionalization, which serves as a key step in producing phenylacetic acid-based agroactives. Agrochemical manufacturers depend on precise dosage during process scale-up to control downstream product purity and minimize by-product formation, especially under regulatory scrutiny for active residue limits.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius on pesticide specifications
    • ISO 9001 and ISO 14001 (environmental and quality systems for agrochemical manufacturers)
    • REACH registration for precursor handling within the EU
    • China GB/T 3796-2016 for pesticide technical requirements

    Typical usage ratio

    • Typically 8–15% by weight of final agroactive intermediate batch, adjusted on the molecular design and downstream target loading; determined during lab-scale optimization for each specific active substance.

    Downstream process integration

    • Added during the Grignard or Friedel-Crafts acylation stages to construct functionalized phenyl rings. Used prior to halogen exchange or side-chain oxidation in custom pesticide synthesis, ensuring required selectivity and stability for large-scale reactors.

    Final product types

    • Herbicide intermediates such as substituted phenylacetic acids
    • Fungicidal active ingredient cores
    • Downstream technical materials for emulsion and wettable powder formulations
    • Bulk actives for field trial and commercial applications

    3. Synthesis of Specialty Dyes and Pigments

    Downstream dye and pigment producers incorporate this compound in the manufacture of high-purity aromatic aldehydes and quinone compounds. Its three methoxy substituents enable unique color-fastness and spectral properties in pigment molecules, particularly for applications demanding light-stable, low-toxicity colorants. Precision in ingredient integration and regulatory documentation is vital to meet textile and food-contact dye requirements.

    Industry compliance standards

    • OEKO-TEX® Standard 100 (for textiles and apparel dyes)
    • EU REACH Annex XVII for dye and pigment safety
    • US FDA 21 CFR 74 (Color Additives for food-contact use)
    • ISO 14001 (for environmental performance in pigment manufacturing)

    Typical usage ratio

    • 5–12% by weight, depending on pigment type and purity requirements. Lower ratio applies for high-intensity dyes, higher ratios tailored for lightfast pigment targets.

    Downstream process integration

    • Introduced in the nucleophilic aromatic substitution or oxidative cyclization step to generate colorant precursors. Integrated before condensation or metal complexation, controlling color hue and stability in final pigment production.

    Final product types

    • Monoazo and anthraquinone textile dyes
    • Organic pigments for plastics and coatings
    • Food-grade coloring agents (where permitted)
    • Printing ink pigment concentrates

    4. Fine Chemical Synthesis for Research Reagents

    2,3,4-Trimethoxyphenylacetic Acid supports the production of custom reagents and catalog reference compounds, favored by leading chemical research organizations and lab reagent firms. Its unique substitution pattern ensures compatibility for preparing building blocks used in medicinal chemistry screens, mechanistic studies, and process validation projects. Manufacturer transparency and lot traceability remain critical to safeguard suitability for regulated R&D workflows.

    Industry compliance standards

    • ISO 9001 for analytical reagent manufacturers
    • OECD GLP (where reference standards required)
    • REACH compliance for European market supply
    • Sigma-Aldrich Guidelines for research-use chemical traceability

    Typical usage ratio

    • Ranges from 0.5 to 3 mmol per reaction, adjustable based on end-reaction stoichiometry and analytical outturn; usage optimized to minimize excess and ensure reaction completeness for small-batch runs.

    Downstream process integration

    • Dosed into condensation or coupling steps for advanced reagent synthesis. Often enters the workflow during the earlier stages of small-molecule library preparation or as a derivatization precursor in analytical method development.

    Final product types

    • Custom reference standards for HPLC/GC-MS
    • Screening intermediates for high-throughput medicinal chemistry
    • Analytical derivatization reagents
    • Building blocks for combinatorial synthesis
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    Certification & Compliance
    More Introduction

    Introducing 2,3,4-Trimethoxyphenylacetic Acid: Precision Matters in Production and Research

    Crafting Quality at the Source

    In the manufacturing world, the path chemicals follow from raw materials to finished product shapes everything clients can do with them. Our production team has years of history with 2,3,4-Trimethoxyphenylacetic Acid. We’ve watched this compound find a home in pharmaceutical building blocks, agrochemical intermediates, high-value fine chemicals, and advanced organic synthesis. We’ve seen demand shift not only for volume but also for consistency, purity, and reduced contamination risk. So a lot of attention and care goes into our process, and into understanding what our clients expect.

    Model and Specifications Rooted in Experience

    We manufacture 2,3,4-Trimethoxyphenylacetic Acid to strict in-house specifications, developed through feedback and lab testing. Purity matters most to chemists downstream, and so we target ≥98% purity on GC, with heavy metal content and moisture minimised in every batch. Shelf stability factors into our protocols, with particular care taken during post-reaction purification and drying. The product typically appears as a white to off-white crystalline powder, with a melting point carefully controlled between 120 and 124°C, ensuring dependable handling and storage in research, pilot, and full-scale environments. Routine HPLC and NMR checks confirm the structural integrity batch to batch.

    Steering Clear of Interference

    Experienced chemists know that impurities, even in sub-percent ranges, translate directly to failed syntheses or poor yields. Trace byproducts—mono- or di-methoxy substituted analogs, or phenolic starting material residues—throw a wrench into advanced organic transformations. Our process focuses on minimising these, using multistage recrystallisation and solvent selection tuned for this specific acid. We sample repeatedly from early intermediates to the refined output. If a batch falls short even by a fraction, it gets reprocessed, not relabelled or blended away.

    Applications: Learning from Practice

    Most of the requests we see for 2,3,4-Trimethoxyphenylacetic Acid come from pharmaceutical R&D, either for direct coupling with active pharmaceutical ingredients or as an intermediate for heterocyclic cores. Synthetic routes for antineoplastic and CNS-targeted drugs often depend on phenylacetic acid frameworks. Research groups and manufacturing plants rely on predictable sample behaviour reaction after reaction, not just a vague purity claim. In crop protection chemistry, this compound often acts as a precursor for select herbicides and plant growth regulators. Academic laboratories, meanwhile, find it useful in aromatic ether cleavage studies—where competing side products destroy the value of control experiments.

    Those uses push for high lot-to-lot reproducibility. We’ve heard from custom synth teams that even minor color or odour differences can signal a problem, prompting delays and extra work. That feedback circles back into our QC approach for every order.

    Manufacturing, Not Trading

    There is a gap between chemical production and chemical trading. We run our own reactors and distillation systems, not just a stockroom for outsourced material. The synthesis—starting from substituted anisoles or guaiacols, carefully controlled methylation and acylation steps—belongs to us. Our chemists monitor every run, pulling random aliquots for chromatography and spectrometry. Each production cycle has been tweaked over hundreds of repetitions to strike the best balance between output and contaminant control, and our dedicated finishing lines reduce cross-contamination from unrelated substances. If a client’s synthesis depends on avoiding particular trace ions or solvents, we take that into account at production planning.

    Comparing to Similar Compounds

    Confusion sometimes arises between 2,3,4-Trimethoxyphenylacetic Acid and its close cousins—2,4,5- or 3,4,5- variants, or unsubstituted phenylacetic acid. We run these side by side in our lab, observing real differences. Substitution pattern alters reactivity at the benzylic position, shifts solubility in protic and aprotic systems, and determines compatibility with various condensation partners. Some clients discover late in development that an ‘almost right’ isomer harms yields or generates persistent impurities. We produce and test all three positional isomers, but every production report drills down to the unique signature of the 2,3,4- compound: melting point, spectral profile, and single-peak chromatography.

    While related compounds may offer surface similarities, users report subtle but crucial differences. A medicinal chemist encountering a stuck reduction often finds the cause hidden in a stray isomer, not in a failed catalyst. If an agrochemical firm finds their final product shows inconsistent activity in the field, trace contamination with a non-target methoxy isomer usually explains it. Multi-year supply relationships hinge on clarity and reliability. We maintain parallel records for side products—documented at every step—so a batch audit reveals the subtle differences before shipments leave the plant.

    Dealing With Supply Chain Pressures

    Raw material fluctuations pose a persistent challenge. Years of manufacturing have shown that not all sources of guaiacol and other feedstocks yield identical intermediate profiles. Impurities from the upstream process threaten the quality of end-product batches. Long before the industry adopted sustainability targets, we began qualifying and requalifying suppliers, preferring those who can guarantee tighter impurity profiles and more consistent shipments. Every new lot of precursor undergoes sample testing, and production schedules pause if test results deviate from expectations.

    Natural disasters, export restrictions, or transportation delays sometimes force us to deal with last-minute substitutions or timeline shifts. Our direct control over intermediate synthesis gives us options, letting us balance the fleet between multiple processing lines and keep product flow stable. Still, we share forecasts and delays with downstream partners as soon as possible, since trust disappears if a project stalls with no warning.

    Process Evolution: A Matter of Long-Term Experience

    Over time, we have refined our process with feedback from industry and our own QA teams. Early runs often saw inconsistent color and clumping in the final powder, traced to solvent residues and insufficient drying. Tighter vacuum controls and additional washing steps brought improvements, but also required new handling systems to avoid powder loss. Today’s product undergoes multistep solvent extraction and inert-atmosphere drying, eliminating most batch-to-batch variability. Continuous monitoring catches color drift or off-odours before bulk product ever reaches packaging.

    Regulatory and environmental standards moved the industry toward cleaner, lower-emission processes. We spent years modifying reactor charging protocols and exhaust treatment to reduce methyl halide release, investing in containment and capture upgrades. These steps cut emissions and preserve product quality, with the added benefit of reducing workplace exposure concerns. Today’s process produces less byproduct, generates less solvent waste, and gives a more consistent yield.

    QC and Traceability: Ongoing Priority

    Quality checks stand front and center in our manufacturing system. Each batch of 2,3,4-Trimethoxyphenylacetic Acid gets a unique identification code tied to detailed process records, reagents, and conditions. This data supports full traceability—even months later, we can retrace any quality concern back to a certain raw material delivery or reactor charge. Our staff keep reference samples from every shipment for retesting on demand. Periodically, we conduct stability studies to verify that product stored at varying temperature and humidity still meets specifications after extended storage.

    We maintain a suite of analytical tools for every outgoing lot—GC, HPLC, NMR, IR—ensuring that the product’s identity and purity align with published standards and client expectations. Recovered solvent is checked for cross-contamination and undergoes polishing before reuse, not just recycled untreated. Our analytical team works hand in hand with production, not downstream as an afterthought.

    Supporting R&D and Custom Applications

    Our production runs feed directly into R&D projects. Pharmaceutical and specialty chemical clients often bring us protocols requiring unorthodox scale, packaging formats, or particular impurity safeguards. We provide technical support—sharing material compatibility data, sample vials, or packaging inert gas fill—based on what the project really needs, not only what’s convenient for our facility.

    Custom applications often create new challenges. Some clients pursue exotic derivatives using non-standard solvents that interact unpredictably with minor byproducts. We respond by targeting tighter process controls, narrowing the impurity profile even further, or prepping extra small-panel samples for trial runs. If storage stability over long sea freights or in humid climates presents an issue, our team reviews packaging solutions using triple-sealed liners or custom barrier drums. Because we work from scratch, not just broker, we can accommodate this level of adaptation.

    Safety, Sustainability, Process Integration

    Hazard management shapes every aspect of chemical manufacturing, and 2,3,4-Trimethoxyphenylacetic Acid is no exception. We run crew safety briefings around solvent handling, dust containment, and personal exposure. Our investment in upgraded air handling and powder transfer equipment limits escape of particulate and vapor, protecting both workers and the environment. Training reinforces proper handling for emergency response, everywhere from synthesis floor to final drum sealing.

    Process integration with other plant operations helps extend the value of every input. Excess heat from batch reactions supports greenhouse operations onsite. Waste acids and spent solvents go through neutralization and mechanical recycling, with all streams monitored to meet or beat local effluent standards. These choices return direct benefits to production—less downtime for cleaning, less raw material bought only to go out as effluent.

    Market Trends and Client Dialogue

    We’ve noticed a shift toward smaller, faster custom synthesis projects, especially as big pharma looks to diversify pipelines and respond to patent cliffs. As clients move away from stockpiling massive inventories, we meet requests for just-in-time deliveries or flexible batch size. Requests for documentation—coas, process descriptions, impurity mapping—continue to grow. We invest in clear communications and prompt data sharing, helping our clients meet audits, regulatory reviews, and market launches without hurdle.

    Global trends toward green chemistry influence both our R&D focus and our customer base. Several large clients ask for details on lifecycle assessments, waste minimization, and renewable sourcing. We see this not only as a compliance matter but as an opportunity to differentiate ourselves from spot-traders or repackagers. Being able to show, with documents and transparent records, exactly how we make and ship each lot has helped us form lasting supply partnerships. This same openness lets us lead quality improvement forums with clients, where we listen to their pain points and feed discoveries back into our daily practice.

    Learning From the Industry—and Contributing to It

    Open dialogue shapes both product and company direction. Plant engineers attend industry seminars, not just to publicise our wares but to trade best practices around emission control and process optimization. Our lab supports collaborative research, helping university groups refine detection and quantification methods for trace byproducts and metabolites. Results feed back into process improvements—each shared detail giving us a better map of where to focus next.

    Competitors in the sector sometimes take the shortcut—relabelled goods, non-transparent handling, or blending off-target lots. These choices erode confidence. Our focus on direct manufacturing, testable quality, and full disclosure creates differentiated value for our partners. In a world where one faulty batch can set research back months, trust arises not from paperwork but from repeated delivery of the promised standard.

    Looking Forward

    Markets, regulations, and technologies never stop evolving. We anticipate tighter controls from both authorities and clients, especially around residual solvents, trace metal content, and process documentation. Our continued investment in analytics, plant upgrades, and personnel training keeps us ready for these demands. The experience of shepherding 2,3,4-Trimethoxyphenylacetic Acid from raw feedstock to pure, crystalline endpoint—hundreds of times over—teaches humility and attention to detail that only grow with time.

    Our commitment remains: produce from scratch, document every run, answer every technical question openly, and support users from project launch through to final product. Whether the need is a kilogram to launch a new medicinal chemistry program or a drum for scaling up an agrochemical process, we serve as the responsible link in the chain—delivering experience, not just product.