|
HS Code |
714759 |
| Chemical Name | 3-Methylcatechol |
| Cas Number | 603-18-9 |
| Molecular Formula | C7H8O2 |
| Molar Mass | 124.14 g/mol |
| Appearance | White to off-white crystalline solid |
| Melting Point | 102-105 °C |
| Boiling Point | 241 °C |
| Density | 1.16 g/cm³ |
| Solubility In Water | Soluble |
| Refractive Index | 1.571 |
| Pubchem Cid | 11911 |
| Iupac Name | 3-Methylbenzene-1,2-diol |
As an accredited 3-Methylcatechol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 3-Methylcatechol is packaged in a 100g amber glass bottle with a secure screw cap and detailed hazard and handling label. |
| Shipping | 3-Methylcatechol is typically shipped in tightly sealed containers made of glass or high-quality plastic to prevent contamination and moisture absorption. It should be labeled according to regulatory requirements and protected from heat, light, and incompatible substances. During transport, it must be handled as a hazardous chemical, following relevant safety protocols. |
| Storage | 3-Methylcatechol should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from sources of ignition and incompatible materials such as strong oxidizers. Protect from light and moisture. Use only with adequate ventilation. Avoid prolonged exposure to air to prevent oxidation. Clearly label the storage area and keep away from food and drink. |
Competitive 3-Methylcatechol prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
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Tel: +8615380400285
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Every batch of 3-Methylcatechol starts with our trained operators overseeing the vessels where methylation shifts the catechol base structure. We make 3-Methylcatechol in white or off-white flakes and powder, depending on downstream needs. The predominant model we supply features a GC purity consistently at or above 99%, and we back this every time through repetitive chromatographic analysis, not guesswork or broad specification sheets. The substance’s CAS number, 4881-37-0, often crops up in requests from clients in synthetic chemistry, pharmaceutical research, and specialty resin manufacturing. As a direct producer, we see first-hand the impact small variances in impurity profiles and moisture can have on reaction yields and reproducibility. Lab-scale synthesis might ignore these, but in scale-up, repeatability reigns, and control matters more than abstract purity declarations.
Our plant’s environment keeps humidity at bay through proper sealing and climate management, crucial for preventing hydrolysis and degradation. Moisture control isn’t an afterthought; it is a routine we repeat across each shift. With 3-Methylcatechol, even slight oxidation causes color and reactivity shifts. That’s why every drum or bag carries a test certificate with real batch data, not just a recycled sheet. We base our reputation on measurable, documented values, including impurity spectra, rather than promises that can’t be substantiated in the laboratory or manufacturing bay.
3-Methylcatechol’s use profile extends beyond textbooks. Across our shipments, biochemists request it as a precursor for synthesizing complex alkaloids and custom API intermediates. Polymer chemists incorporate it where additional methyl substitution imparts unique mechanical or oxidative properties in finished resins and adhesives.
Because we control every ton coming off our production lines, we have direct feedback whether a particular batch crystallizes as preferred or whether a process tweak has left too much residual solvent. That practical approach allows us to adapt quickly—not just for large-volume clients but also for custom projects where our customers’ researchers notice performance dips traced back to raw material inconsistencies. We can follow those findings into how we operate, rather than relying on reports handed down from unrelated vendors or resellers.
Some customers turn to 3-Methylcatechol expecting an interchangeable alternative to simple catechol or its dimethylated analogs. Our experience shows each methyl group on the aromatic ring changes reactivity and downstream handling. In oxidative polymerization, the meta-methyl group prevents certain cross-links that otherwise form with catechol itself. We watch these outcomes play out in production reactors, and we see the volatility and evaporation risks—where catechol’s volatility can sometimes cause headaches that 3-Methylcatechol sidesteps due to its higher boiling point.
The truth from our manufacturing bench: every lot must match not just purity, but flow and stability standards we established over years of internal trials. Unlike lower-purity or haphazardly blended products, our standard undergoes repeated vacuum drying on-site, bringing moisture down near trace levels. Chemists who attempt syntheses with off-spec material see it in unexpected reaction side-products or sluggish conversions. We have seen multiple clients switch after supply interruptions from larger commodity sources—facing quality lapses that forced costly reruns. The consistency built into our scale-up lines serves as a control factor for those making bioactive molecules, not just a convenience.
Some in the industry promote “commodity” methylcatechol. Our perspective is different. The main difference comes from in-house analytics: we track more than just GC purity, using UV, FTIR, and mass spec screening to root out contaminants hard to see in smaller facilities. For researchers and manufacturers, these extras can mark the difference between a working process and weeks lost chasing the cause of impurities. Our technical team regularly supports customer labs, analyzing failures and troubleshooting right down to the lot level. No paperwork runaround, only practical resolution.
We get frequent inquiries comparing this product to catechol or 4-methylcatechol. From where we stand, the core differentiation shows up in the reactivity during coupling or polymerization steps. Compared with catechol, the methyl group in the meta position reduces hydrogen bonding while raising the boiling point. This influences both storage and safe handling: 3-Methylcatechol is less prone to moisture uptake, and its greater thermal stability means lower vapor losses during high-temperature reactions. Several years ago, a customer shared data showing 3-Methylcatechol’s higher yield on a palladium-catalyzed coupling, tied to its altered electron density. Stories like these filter back to our technical staff and remind us that real-world behaviors, not mere structural formulas, drive user choice.
Compared with 4-methylcatechol, our 3-substituted isomer displays distinct reactivity. The magnitude and position of methyl substitution matter substantially in catalytic and enzymatic systems. Isomeric purity is not a marketing point in our view; it is a core feature for reproducible research and large-scale manufacturing. We make a point not to blend or “average” isomers, as some multi-product traders might do to maximize yield at the expense of specific activity.
Every storage vessel, whether stainless or HDPE, needs scrutiny for possible contamination. Even minor residues from previous chemical batches leave a trace odor or variable color, both of which our QA team catches long before product release. Years back, after a review of drum cleaning protocols, we tightened our own cleaning cycles to avoid any mismatch between what our drums once held, and the current lot of 3-Methylcatechol. This isn’t a regulatory checkbox; it’s learned from actual returns and field complaints.
Any small manufacturer with a few years in production knows that fine aromatic chemicals seek out any route to degrade. Our constant monitoring for pH drift, airborne contamination, and light exposure comes not only from the SOPs on our wall, but from seeing barrels returned after improper client storage—discoloration yet clear documentation showed our original material left the factory in top shape. So, we didn’t just add a caveat to the shipping docs; we built quarterly seminars for biggest-volume customers, showing them with reference samples how off-spec storage slashes their own yields and raises costs.
Our work doesn’t stop with synthesis. We manage waste streams internally, capturing all wash water, spent solvents, and used acetone, cycling them in closed systems with external audits. Our compliance history includes regular on-site inspections from regulators as well as process improvement walkthroughs by our safety committee. From practical experience, the best protocols for hazardous materials aren’t developed in distant boardrooms. They grow from the people who blend and bottle the product every shift.
On safety, we learned the hard way that ventilation and PPE only go so far; robust labeling and clear batch documentation builds trust with end-users and our own staff. We regularly test for dusting and volatility in shipping tests, helping us choose between multi-layer bags and steel drums. In our experience, customer safety isn’t just about meeting SDS sheet requirements—it’s about relating shipping standards and field experience directly to the handlers and operators tasked with day-to-day product use.
Each real-world return, each support call from a technician blending 3-Methylcatechol into a sensitive process, strengthens what we offer. Some project managers worry about delivery dates, others about purity slips. After a decade of production and support, we match our manufacturing rhythm to meet those expectations—offering batch tracking, rapid sample turnaround, and, where possible, technical troubleshooting onsite or remote.
Clients in agriculture and flavor chemistry report sensitivity to even trace off-notes or color changes in their processes. Based on this, we installed secondary odor threshold testing as part of our QA chain several years ago. Most academic literature doesn’t mention the distinct aroma of methylated catechols, yet in practical terms, our partners use this human sensorium to double-check identity or reveal shipping defects overlooked in paperwork trails.
Our attitude as a chemical manufacturer comes from years of direct problem-solving. Once a shipment failed after new warehouse staff stacked material near heating vents, causing partial melt and resolidification. Our sales manager and QC specialist visited the site and—after seeing the damage—helped them retool their internal workflow and eliminate temperature spikes. No write-off; a long-lasting customer relationship built from firsthand support.
In summary, we shape our approach to 3-Methylcatechol around actual user feedback and internal lessons learned—sticking to documented outcomes, not generic promises. We don’t farm out our QA, nor do we outsource risk management. With supply chain uncertainty sometimes rattling the global market, we keep stocks locally warehoused and set reorder points using empirical usage data from client records, not speculation.
Our in-house R&D continually assesses synthesis methods for both product and byproduct profiles. Where client projects face regulatory hurdles, we join their tech teams in reviewing new application data and, where possible, help prepare supporting documentation. Direct contact between our lead chemists and the client’s technical staff means fewer misunderstandings and more robust final products.
For every client application, from pilot production to kilo-lab scale runs, we recommend evaluating not just a datasheet but plant-level records and user feedback. In our own experience, the fastest path to troubleshooting often lies in tracking lot histories, staff notes, and client support tickets—not just numbers printed on labels. We see competitors who buy and relabel products, but firsthand accountability delivers more value over time. If a batch doesn’t perform, we pull it; we don’t push troubleshooting onto the next party in the supply chain.
We supply 3-Methylcatechol to industries as diverse as specialty polymers, pharma research, flavor chemistry, and agricultural intermediates. Behind each delivery lies both accumulated learning and direct customer stories. We grow alongside the users who trust their syntheses and products to us, making process improvements that stem from resolving real issues rather than hypotheticals set at a distant HQ.
From the granulation facilities to the blending rooms, from the analytical labs to the loading docks—every person behind our product keeps one eye on customer goals and another on maintaining consistent, safe, and trouble-free material for the next order. We maintain this approach across each ton of 3-Methylcatechol we produce, as a core value built into every stage, not as an afterthought or checkbox for compliance.
Quality in 3-Methylcatechol doesn’t come from regulatory tables alone. Our approach draws from each production shift, each customer call, and every challenge overcome on the factory floor. We build quality through hands-on expertise, staying transparent with each shipment, and sharing process learnings openly with partners who expect not just dependable product but real support. Genuine value comes through this cycle of experience and transparency, and shapes every lot that leaves our warehouse.