|
HS Code |
956530 |
| Chemical Name | 4-Methylcatechol |
| Cas Number | 452-86-8 |
| Molecular Formula | C7H8O2 |
| Molecular Weight | 124.14 g/mol |
| Appearance | White to off-white crystalline solid |
| Melting Point | 50-54°C |
| Boiling Point | 245°C |
| Solubility In Water | Soluble |
| Density | 1.16 g/cm³ |
| Flash Point | 137.2°C |
| Synonyms | 4-Methyl-1,2-benzenediol, Homocatechol |
| Smiles | CC1=CC(=C(C=C1)O)O |
As an accredited 4-Methylic Catechol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 250g amber glass bottle with screw cap, hazard labeling, chemical name "4-Methylcatechol," CAS number, and supplier information on white label. |
| Shipping | 4-Methylic Catechol is packaged securely in sealed containers to prevent contamination and degradation. It is shipped in compliance with relevant chemical transport regulations, typically as a non-hazardous material. Proper labeling and documentation accompany the shipment to ensure safety and traceability throughout transit. Store in a cool, dry place upon arrival. |
| Storage | 4-Methylcatechol should be stored in a tightly sealed container, away from light, heat, and moisture in a cool, dry, and well-ventilated area. It must be kept away from strong oxidizing agents and acids. Proper labeling and chemical compatibility need to be ensured, and access limited to trained personnel. Personal protective equipment should be used when handling this substance. |
Competitive 4-Methylic Catechol 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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Direct, dependable relationships with chemistry shape the backbone of manufacturing. For years, we've produced 4-methylcatechol at industrial scale, keeping a hard look at both quality and consistency. Our team tracks the process from sourcing raw phenolic feedstocks through finished material, so each shipment reflects the know-how built from decades in synthesis. Our 4-methylcatechol stands out for its clarity and tight melting range, parameters we manage tightly using a continuous monitoring protocol. We never cut corners on purification. Even a subtle impurity impedes downstream production, and manufacturers relying on our product—whether they're producing antioxidants, intermediates, or stabilizers—want those margins right at the limit, with nothing hidden.
Quality starts with process control. Rather than treat our synthesis runs as routine, each batch gets documented for catalyst condition, moisture analysis, and especially pH. Slight drift at any stage of oxidation or demethylation leads to off-standard profiles, and our people spot those fast—errors mean real disruptions at a user's plant. We keep direct traceability to every lot produced, and repeat buyers often tell us they switched to our line after others handed over material with inconsistent trace impurities.
4-methylcatechol, also called 3,4-dihydroxy-toluene, forms a colorless to pale yellow crystalline solid that easily dissolves in hot water and alcohol. Structurally, the methyl group influences reactivity and volatility, especially in comparison to the parent catechol. It gives users better options in tuning reactions that require gentle electron-donating effects or want to moderate oxidative sensitivity. Through years of feedback, we’ve seen it used in moderately alkaline and neutral media without the runaway reactivity of unsubstituted catechol.
Our technical teams never ignore physical characteristics—the feel, the odor, the particle size and how it functions in a real plant. Unlike catechol, which can react rapidly to air and moisture, 4-methylcatechol offers more thermal stability in storage and through multiple repack cycles. Shipping it in sealed, inert-lined drums, we see that the color stays nearly unchanged for months. That sense of reliability in long-haul transport matters, and it shapes client trust more than any certificate or analysis.
Customers call on 4-methylcatechol to do much more than fill a slot in a formulation sheet. The antioxidant qualities show best in specialty resins and polymers where oxidative degradation threatens shelf stability. Unlike the parent catechol, the methyl group ensures balance between reactivity and longevity, so cured polymer products last longer in real-world conditions. That’s something buyers in coatings or adhesives care about—oxidation stabilizers that buffer against ultraviolet damage, scratch-resistance, or premature color shifting.
Much of what drives commercial demand comes from pharmaceutical and agrochemical intermediates. Here, the methyl group gives selectivity in cross-coupling reactions, resulting in less byproduct and cleaner yields. We hear from synthetic chemists that the handling profile, especially in column purification runs, feels easier than catechol—no sticking, less tendency to caramelize, and less aggressive reactivity under basic work-up conditions.
A number of fragrance developers come back to us year after year. The nuanced difference in aroma molecules shaped by 4-methylcatechol can’t be mimicked by its unsubstituted relatives. This difference means soft, more wearable notes in end products, and we see interest from boutique and global houses alike. These professionals don’t just want a reagent; they ask for a predictable cornerstone to build consistency into each batch.
Manufacturers often weigh phenolics by price or paperwork, but real differentiation comes from process insight. Our lines for 4-methylcatechol integrate quality-by-design principles that pull from real-world client feedback and pilot plant experience. Unlike commodity catechols—often a byproduct with broad, variable impurity spectra—our material always meets the industry’s need for precise methyl placement and tightly controlled iron levels.
The supply chain matters. We control raw material intake, so batch-to-batch odor doesn’t fluctuate and dusting problems that plague some competitors’ lots don’t show up. Our batches leave the plant with tested moisture content, matched particle size, and a tracked COA for every drum. Downstream, that means operators spend less time filtering or troubleshooting. Rapid dissolution reduces mixing time, especially in multi-ton polymer kettles or reaction tanks.
Process engineers from adhesive, polymer, or even specialty dye companies know that changes in raw material properties ripple through their systems. If the melting point isn’t tight or iron content drifts even slightly, the end application might yellow, foam, or lose yield. Over the years, we’ve heard about competitors’ materials causing shutdowns for exactly those reasons. Our own 4-methylcatechol line undergoes unbroken in-process monitoring for those specifications, because missed targets anywhere cost everyone all down the line.
One issue common to the industry—especially under humid conditions—is clumping during bulk transfer or storage. We tackled this by refining our drying protocols: each lot leaves our plant with water content checked by Karl Fischer titration, and we use custom-designed liners to keep air and moisture from creeping back in transit. Operators at customer facilities tell us unloading and dosing goes cleaner and with more confidence: that matters in production plants where half-hour interruptions compound into lost orders.
Pale yellowing over extended storage always gets raised in technical audits. We invested in new packing lines with nitrogen blanketing, which preserves visual clarity and protects against color instability. For those running automated dosing or high-speed mixing, the dust-control protocols mean less spark hazard, less cleanup, and smoother handling from drum to feed hopper. We’re not guessing, either: our batch records show every modification, and each time we adjust for something learned from a partner or in-house trial.
It’s easy to write a 99% label or attach a sigma value to a COA. What buyers rarely see are the micro-level differences captured during continuous quality checks. A real-world 4-methylcatechol batch from our lines posts a single-digit ppm on iron and heavy metals, a profile that means silver catalysts don’t deactivate downstream. Where others show patchy color, ours remains water-clear right out of the bag even after long hauls in variable climates.
Still, we don’t claim perfection by simply reporting assay numbers. What we learn from each run translates directly into the next cycle—a real feedback loop where operational nuances never stay abstract. Technical support teams feed insights to plant managers, who then test minor process changes. If even a trace off-odor or a spike in dissolved solids turns up, root-cause analysis begins before bulk shipment ever proceeds. Yet, for all this, the most common comment from returning clients remains straightforward: batches match expectations, every time.
3,4-Dimethylcatechol or plain catechol might look close structurally, but function diverges quickly under real use. Take oxidative polymerizations. Too aggressive, and you’re left with cross-linked waste, not useful product. Too slow, and throughput stalls. Our 4-methylcatechol lets formulators target that performance window where selectivity and stability overlap. In process chemistry, catechol itself delivers high reactivity but less shelf-life and more volatility. The singular methyl on the ring in our product acts as a reactivity governor, reducing hang-up but keeping conversion rates commercially viable.
In agricultural syntheses, where residue limits and safety thresholds need respect, our manufacturing line’s low residual solvent and low iron distinguish finished formulations. Technical audits from client plants, especially those running multi-shift operations, point to trouble with other phenolics contaminating production lines or causing filter replacements far too often. Our granular form, engineered from repeated client feedback, flows out with minimal caking and washes out with simple aqueous rinsing.
Fragrance chemistry brings yet another divergence between these similar molecules. Even a minor methyl substitution results in distinctly different top-notes and base development in perfumes and flavors. The receptors in human olfaction catch these subtle changes. Customers—from artisan perfumers to large conglomerates—need a consistent material with low drift in volatile profile, traits that give them confidence for regulated lot tracking. This is often missed by trading houses, but direct-from-manufacturer traceability changes everything.
Volatility in global supply, new environmental compliance rules, and evolving technical requirements keep everyone in our field on their toes. Periodic raw material shortages, especially for high-quality phenolics, raise the stakes for reliability. Large buyers check deeper than mere cost, drilling into process transparency and stability. Direct connections between manufacturer and user smooth out a lot of volatility. We stay open with partners on production capacity, shift schedules, and risk factors.
Regulatory expectations climb every year. Our 4-methylcatechol line runs through continuous review for REACH compliance and review of all available environmental footprint data. Investing in plant upgrades—improved effluent controls, energy-efficient reactors—pays off by reducing complaints and producing cleaner, safer material. Years ago, looser controls might have slipped through for non-critical intermediates. Not anymore. Our internal audits and certifications give buyers confidence, and that translates to repeat contracts spreading over multiple fiscal years.
Commercial realities include constant requests for sample material for new formulations, rapidly evolving product requirements, and a surge in interest from green chemistry initiatives. Companies in paint, resin, agricultural chemistry, and fragrance pipelines bring new questions every quarter. Our lab teams run pilot-scale batches on tight timelines, and R&D pushes for optimizations that can scale full-volume without loss of purity or performance. Taking challenges head-on—rather than brushing them off or pointing back to a datasheet—keeps us responsive and sharp.
Real customer feedback does not come filtered through dozens of distributors or lost in translation between sales and plant. Our team handles queries from technical leads and production managers directly. If challenges surface—a shipping deadline, a concern over color stability, a unique end-use parameter—production chemists get involved. It’s common for purchasing heads to call with requests shaped by last year’s problems: a slow-dissolving grade, off-standard odor, trace metal spikes. Because our entire product pipeline sits in one integrated site, troubleshooting and adjustment becomes fast. This strengthens long-term relationships far more than price wars can.
Knowledge grows with every batch. A process trial that identified a particle-size hangup turns into a new equipment spec for the next run. Lessons learned from a drum returned due to caking led to modified packaging and storage guidance. Everyone—line operators, QA analysts, logistics managers—shares responsibility for the result. We invite users to our site tours, to see in real time how tight controls at each step build trustable product. This level of transparency reflects commitment, not just compliance with paperwork.
Emerging trends ask more from the same basic chemistry. Green manufacturing practices pressure every player in the value chain to cut waste and lower emissions. For our 4-methylcatechol facility, continuous improvements in solvent recovery, energy load balancing, and water treatment shape our investments year-on-year. Leaner yields and responsible resource use do more than cut costs. They strengthen license to operate, let us pass environmental scrutiny, and win new market access as standards evolve.
Close work with partners developing next-generation applications—higher-grade polymers, fragrances with lower allergenicity, crop protection solutions with tighter residue profiles—keeps innovation active. We listen for what matters most to these customers, often on the shop floor or in their pilot plant test runs. Our experts learn not just from successes, but from failures and returned drums. Each bit of feedback points the way to the next round of improvements.
Resilience comes from consistent quality, transparent sharing of expertise, and honest evaluation of process strengths and weak spots. For every drum we ship, the reputation built into it comes from people directly invested in day-to-day manufacturing realities. The technical, regulatory, and performance demands around 4-methylcatechol will never get easier. Only experience, and a willingness to respond quickly to real-world feedback, will keep product and partnerships strong.