Anhui Liwei Chemical Co., Limited
Products

4-Methyl-1,2-Benzenediol (4-Methylpyrocatechol)


    • Product Name 4-Methyl-1,2-Benzenediol (4-Methylpyrocatechol)
    • Alias 2,3-Dihydroxytoluene
    • Einecs 204-333-7
    • Mininmum Order 1 g
    • Factory Site Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry sales2@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    912633

    Chemical Name 4-Methyl-1,2-Benzenediol
    Other Name 4-Methylpyrocatechol
    Chemical Formula C7H8O2
    Molecular Weight 124.14 g/mol
    Cas Number 452-86-8
    Appearance White to off-white crystalline solid
    Melting Point 104-106°C
    Boiling Point 285°C (estimated)
    Solubility In Water Soluble
    Density 1.18 g/cm³
    Pka 9.96 (first hydroxyl group, approximate)
    Storage Store in a cool, dry place; keep container tightly closed
    Odor Phenolic odor

    As an accredited 4-Methyl-1,2-Benzenediol (4-Methylpyrocatechol) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The packaging is a sealed amber glass bottle labeled "4-Methyl-1,2-Benzenediol, 99%, 100 grams," with safety symbols and handling instructions.
    Shipping 4-Methyl-1,2-Benzenediol (4-Methylpyrocatechol) is shipped in tightly sealed containers, protected from moisture, heat, and direct sunlight. It should be packed according to hazardous material regulations, clearly labeled, and handled with appropriate personal protective equipment (PPE). Shipping documentation must comply with local and international chemical transport guidelines.
    Storage 4-Methyl-1,2-Benzenediol (4-Methylpyrocatechol) should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from light and incompatible substances such as strong oxidizers. Protect from moisture and heat. Store under inert gas if possible to prevent oxidation. Ensure proper labeling and secondary containment to prevent accidental release or contamination.
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    Tel: +8615380400285

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    Certification & Compliance
    More Introduction

    4-Methyl-1,2-Benzenediol: Practical Experience from a Chemical Manufacturer

    Introduction to 4-Methylpyrocatechol

    Years of producing high-purity 4-Methyl-1,2-Benzenediol have brought a hands-on perspective no catalog description could match. Commonly called 4-Methylpyrocatechol, this compound shows up as a white to off-white crystalline powder with a distinctly phenolic aroma. Our facility handles volumes both large and small, molding this compound into a reliable foundation for a range of chemical syntheses and specialty applications.

    Model and Purity Standards

    Quality builds trust. In our plant, the most requested grade has a purity above 99%, proven by gas chromatography. Consistency starts with raw material selection, runs through each filtration step, and ends only after we’ve confirmed trace impurities stay well below industry limits. Our team measures water content, chloride, and metal traces with calibrated instruments; we keep iron and heavy metals extremely low to ensure reactivity and stability for end users. Batch COAs reflect only what’s actually analyzed, using real samples from each production lot.

    Over years of running distillations and crystallizations, we have learned small process shifts make big differences. We avoid batch variation by refining our separation steps, ensuring the color stays as close to pure white as practical, and particle size distribution remains tightly controlled. Delivering the right crystalline morphology affects everything from solubility to reaction rate in commercial production settings.

    Common and Niche Uses

    Sitting in the benches of research labs or chemical production lines, 4-Methylpyrocatechol plays a quiet but catalytic role. Its greatest demand comes from specialty syntheses, pharmaceuticals, and agroscience intermediates. Pharmaceutical firms prefer material free from by-product and color bodies, and our team scrutinizes every lot to fit those requirements.

    Some partners use 4-Methylpyrocatechol as a building block for active pharmaceutical ingredients. Others combine it with oxidizing agents to generate key quinones for dyes and colorants. In the world of crop protection chemistry, it often serves as an intermediate in selective herbicide preparation. Several clients in the electronics sector use it as a reducing agent, leveraging the controlled purity and particle size. Our technical support team has helped streamline scale-ups by delivering material with carefully monitored residual solvents and minimal dusting.

    Unlike mass-produced commodity chemicals, our 4-Methylpyrocatechol never cycles through warehouses or sits on shelves for months. Each package is freshly filled after quality checks. This keeps the phenolic function highly effective and ensures low degradation. Chemical synthesis is unforgiving when input quality varies; our repeat partners come back not just for the purity, but for the batch-to-batch reproducibility that matters when developing new active molecules.

    What Sets 4-Methylpyrocatechol Apart From Standard Catechols

    Experience has shown that 4-Methyl-1,2-Benzenediol outperforms simple catechol in several technical settings. The methyl group changes its reactivity profile, which comes in handy for selective oxidation, coupling reactions, and stepwise syntheses. Where standard catechol might introduce side products or require extra purification, the methyl analog simplifies workflows. Modern pharmaceutical and crop science rely on that selectivity to reduce waste and streamline production.

    Chemists working with electron-rich aromatic diols often reach for 4-Methylpyrocatechol to push reactivity or unlock new product lines. Its extra methyl improves stability under heat or when exposed to light, so less active material is lost during processes that would degrade ordinary catechol. This difference means longer shelf life and less yield loss in both research and production batches.

    Another key distinction is solubility. Our 4-Methylpyrocatechol tends to dissolve more easily in polar organic solvents than unsubstituted catechol, which helps during extraction and crystallization. We’ve seen this firsthand when supporting partners scaling up chromatography-based purifications—cuts down solvent use, sharpens product isolation, and smooths out downstream reactions.

    Handling, Storage, and Process Engineering

    Running a facility where safety comes first, our production engineers pay close attention to proper containment and handling of 4-Methylpyrocatechol. While the compound remains relatively stable under typical lab conditions, exposure to air and light can trigger slow oxidation. We pack every shipment in nitrogen-flushed, airtight containers. Staff training covers cleanroom protocols, PPE requirements, and environmental controls. Experience shows that oxidative color change can sneak up on you if storage or handling slips; thorough packaging and rapid delivery make the difference.

    Some end-users need product presented as larger granules rather than standard powder. We adapted our crystallization and drying techniques after multiple customer requests, offering flexible particle sizes while keeping dusting to a minimum. Laboratories need smaller, flowable samples while process plants ask for larger lots packed in lined drums or high-barrier bags. Each presentation draws on feedback from those who use the compound on the ground.

    The sensitivity of 4-Methylpyrocatechol toward oxidative degradation also means our logistics group has worked closely with forwarders and site managers to guarantee short transit times and climate-controlled storage where feasible. Years of feedback taught us that a few extra precautions at this step prevent customer complaints about discoloration and off-odors.

    Sustainability and Regulatory Practice

    Chemical manufacturing is not just about efficiency; increasing focus lands on sustainable practices and regulatory compliance. We track every precursor and reagent, keeping complete records from synthesis to delivery. This transparency wins the trust of client auditors and regulatory inspectors. Waste treatment systems minimize environmental impact—spent solvents are recovered, and advanced oxidation destroys phenolic residues before discharge.

    Most buyers ask about compliance with hazardous substance rules and local registration. We supply only material that meets the latest environmental, health, and safety benchmarks for industrial handling and downstream processes. Internal REACH-style documentation, MSDS, and test protocols support smooth import and registration for downstream users. Decades in this field have taught us that cutting corners creates bigger problems.

    Conversations with research partners often turn to green chemistry. Each round of process improvement evaluates atom economy, renewable feedstocks, and energy consumption. We have reduced water use during washing steps and replaced several legacy solvents with less toxic alternatives. Even small changes at the manufacturing plant ripple through the whole supply chain, making it easier for end-users to meet their own sustainability targets without sacrificing product quality.

    Quality Control and Technical Support

    Quality means paying attention to detail. Our lab crew checks raw materials, intermediates, and the final product using validated methods including GC, HPLC, IR, and UV-Vis for both identification and impurity profiling. Retained samples from each lot provide a backup resource if customers need support with regulatory filings or root-cause investigations. We keep all equipment calibrated and regularly audit our procedures. This attention to real-world performance beats abstract claims every time.

    We’ve supported pilot plant engineers, academic researchers, and multinational manufacturers as they scale reactions from milligrams to kilos. Each run brings new questions—how to tune the oxidative atmosphere, which anti-caking agent suits their reactors, why a particular fraction tests off-spec. Our chemists have walked customers through dozens of troubleshooting sessions, sharing field data and practical fixes drawn from our own experiences, not just textbooks. This level of engagement builds partnerships—not transactions.

    For process engineers wanting to adapt their lines, we’ve piloted customized blends and residue-free grades that skip added stabilizers. Some clients need single-use lots, others want material tailored to a particular purification strategy. We respond with real samples, not hypothetical options, and always map out every modification in advance so buyers know exactly what they will receive.

    Real-World Challenges and How We Solve Them

    Manufacturing 4-Methylpyrocatechol isn’t just following recipes. Raw material supply can shift overnight, so we maintain safety stocks and pre-qualify multiple supply sources. Any deviation from historical impurity patterns triggers a full production review. We take the time to probe and replicate unexpected appearances of process by-products, making sure nothing slips through to our finished goods.

    Some years ago, a change in local climate increased humidity during certain months. Our dryers couldn’t hold the original cycle times, leading to clumping in our finished product. Instead of masking the problem, we tweaked drying parameters and installed real-time moisture meters. Regular customer check-ins confirmed product improvements, and this transparency fostered better long-term relationships.

    Batch scaling can also bring surprises. Number of scale-up steps affects both particle size and oxidation sensitivity. We work closely with users moving from jars to full-scale reactors, adjusting our downtime and cleaning procedures so each order meets strict benchmarks. Sometimes this means retooling ovens or centrifuges, but we do what’s required to keep both sides operating smoothly.

    On the commercial front, rising logistics costs and fluctuating regulatory frameworks add pressure to operations. Our logistics staff double-check regulations before every international shipment to avoid border holdups or compliance issues. Advanced planning and thorough documentation cuts back on delays and makes downstream customs clearance faster. Over the years, this preparedness has helped avoid landed cost surprises and protected our customer relationships.

    Expertise and Credibility: Why Experience Matters

    Years in the field have built both expertise and credibility. Whether solving storage issues, tracking purity fluctuations, or dialing in process changes, our crew has witnessed the impact of direct engagement with clients. Standard offerings alone rarely fit complex operational settings. We back up every claim with documentation, hands-on data, and continuous improvement—no generic guesses, just authentic experience earned from actual production lines.

    Technical knowledge is only part of the equation. The manufacturing floor creates a unique perspective on product handling, staff training, safety procedures, and regulatory readiness. We have learned the value of staying alert to end-user feedback and technical developments from project launch through to bulk supply. Sharing lessons learned across industries—pharma, agrochemistry, electronics—has improved both our internal practices and our client support.

    Many new clients arrive with pain points inherited from past suppliers: variable particle size, unpredictable color, inconsistent delivery. Our job as a manufacturer is to match or exceed their standards, taking lessons from every run gone wrong and every order gone right. We keep doors open for site inspections and technical audits, offering transparency into every stage of our process. This approach is central to both building trust and standing up to real-world scrutiny from partners and regulators alike.

    Opportunities for Improvement and the Road Ahead

    Looking forward, process intensification and digital monitoring offer new avenues for enhancing 4-Methylpyrocatechol quality. Technology can automate routine tests, track deviations, and flag off-target conditions in real time. We invest in data-driven process control, linking all sensors and test equipment into a centralized dashboard. Engineers and QC teams catch process drift faster, minimizing off-spec product and waste.

    Customers are requesting greener, higher-efficiency synthetic routes with less hazardous by-product. Our continued R&D explores catalytic methods, greener solvents, and alternative oxidants to reduce impact from cradle to grave. Each engineering project builds on experience won in the field—what works in the lab doesn’t always scale to the plant, and every failed trial offers data for the next round of improvement.

    Direct lines of communication remain essential. Whether troubleshooting a crystallization issue in Japan or handling a regulatory filing in California, we stay engaged. Fast, knowledgeable responses and full transparency distinguish real manufacturers from resellers or brokers with less technical grounding. The journey continues, marked by deeper engagement, closer technical partnerships, and a persistent drive to deliver better product, batch after batch.

    Conclusion: Value Beyond the Label

    4-Methyl-1,2-Benzenediol demands attention well beyond its chemical name. Expertise, safety, and customer-centered production shape the difference between ordinary batches and consistently high-performing material. Our team backs quality claims with measured facts and years of hands-on experience, not templated assertions. End-users rely on purity, stability, and technical support rooted in the realities of chemical manufacturing.

    Every year brings new challenges. Supply conditions change, regulations shift, technical requirements evolve. The only way to keep up is to stay close to the process and the people it serves, listening and responding to their hard-learned needs. This is the practical perspective of a chemical manufacturer—one grounded in real operations and committed to advancing the reliability and value of 4-Methylpyrocatechol for industries that build on chemistry.