Anhui Liwei Chemical Co., Limited
Products

2-Amino-4-Methylsulfonyl Phenol


    • Product Name 2-Amino-4-Methylsulfonyl Phenol
    • Alias 2-Amino-4-methylsulfonylphenol
    • Einecs 629-888-9
    • 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

    669327

    Name 2-Amino-4-Methylsulfonyl Phenol
    Cas Number 82641-50-1
    Molecular Formula C7H9NO3S
    Molecular Weight 187.22 g/mol
    Appearance Off-white to light yellow solid
    Melting Point 160-163°C
    Solubility Soluble in organic solvents such as DMSO and methanol
    Purity Typically ≥98%
    Functional Groups Amino, phenol, methylsulfonyl
    Synonyms 2-Amino-4-(methylsulfonyl)phenol
    Storage Conditions Store at 2-8°C, protected from light and moisture
    Smiles CCS(=O)(=O)C1=CC(=C(C=C1)N)O

    As an accredited 2-Amino-4-Methylsulfonyl Phenol 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 containing 100 grams of 2-Amino-4-Methylsulfonyl Phenol, labeled with safety and handling instructions.
    Shipping 2-Amino-4-Methylsulfonyl Phenol is shipped in tightly sealed containers to prevent moisture and contamination. It should be transported at ambient temperature, away from incompatible substances and direct sunlight. Packaging complies with regulatory requirements for chemical safety, ensuring secure and compliant delivery. Handle with appropriate personal protective equipment during loading and unloading.
    Storage 2-Amino-4-Methylsulfonyl Phenol should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area. Keep it away from strong oxidizing agents, heat, and direct sunlight. Ensure storage conditions minimize moisture exposure to prevent degradation. Properly label the container and restrict access to trained personnel to maintain safety and chemical integrity.
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    Certification & Compliance
    More Introduction

    2-Amino-4-Methylsulfonyl Phenol: Practical Insights from Our Manufacturing Floor

    Real Experience, Real Product

    Formulating and scaling up specialty intermediates brings a particular satisfaction only experienced on the production line. Over years of producing 2-Amino-4-Methylsulfonyl Phenol ourselves, we see not just its chemical formula on a specification sheet but also the real-world process needed to bring this versatile compound reliably into use for downstream applications. We maintain tight controls from raw material sourcing to final drying because our customers rely on repeatability and clarity.

    Why This Compound Matters in Synthesis

    2-Amino-4-Methylsulfonyl Phenol stands apart in the toolkit of aromatic intermediates. Its dual functional groups – the amine on the second carbon and the methylsulfonyl at the fourth position – make it an anchor point for downstream chemistries. In the dyes and pigments segment, compounds like this provide a bridge between simple phenolic bases and more complex colorant molecules. Pharmaceutical projects often look for specific substitution patterns that are hard to reach with more basic phenolic intermediates. Our production runs have shown that even a subtle shift in substituent positions opens new possibilities for targeted synthesis and bodily compatibility.

    Specifications: Beyond Numbers on a Page

    Developing a consistent product means we see every batch through several analytic checkpoints. The white to off-white crystalline form is typical for this batch, although minor variations in crystal habit can signal changes upstream that warrant attention. Purity sets a foundation: our process achieves well above 98%, which matters in multistep syntheses where stray by-products cause downstream headaches. Moisture content receives special focus since even trace levels impact handling and storage, especially under humid conditions.

    We routinely receive feedback from formulation chemists noticing fewer disruptions, clumping, or flowability problems. That feedback doesn’t always appear on a spec sheet, but it shapes our approach at every filtration and milling step. Particle size distribution, while influenced by mechanical grinding, changes based on reaction yield and washing sequence. Our in-plant adjustments come from direct comparison with earlier runs, logging what tweaks matter most, and acting to keep consistency batch after batch.

    Molecular Role in Diverse Applications

    After years supplying 2-Amino-4-Methylsulfonyl Phenol to a range of users, we recognize it as more than just a building block. In dyes, it boosts solubility and shifts hue because the methylsulfonyl group introduces electron-withdrawing capacity while maintaining chemical stability. Customers in pharmaceutical R&D look for easy functionalization at either the amine or phenol positions, allowing introduction of sulfonamides, sulfonate esters, or acylation reactions without cross-reactivity headaches. We prepare each lot with the eventual end-use in mind.

    Crop protection chemistry continues to evolve, with ever-tighter tolerances on product impurities. Producers in this field demand a product that doesn’t introduce unknowns. After scaling up several specialty herbicide or fungicide intermediates, we see how even a trace mismatch in methylsulfonyl isomer content can give rise to downstream biological variability. Our quality systems catch these issues before shipping, reducing the risk of costly surprises for formulation houses or regulatory submissions.

    What Sets It Apart

    Among substituted phenols and aminophenols, the methylsulfonyl modification provides distinct advantages. Simpler analogs, such as 2-aminophenol or straight methyl/ethyl substituted phenols, frequently show inferior stability during storage or lose specificity in more challenging synthetic steps. In contrast, introducing the sulfonyl group creates a handle for selective reactions. This difference translates into fewer side reactions in sulfonation or diazotization, enabling users to maintain better control in both laboratory and industrial settings.

    Not all sulfonyl phenols behave the same way. With 2-Amino-4-Methylsulfonyl Phenol, synthetic routes tend to be more predictable. Using our product, end-user chemists report improved yields, fewer purification headaches, and reduced risk of residual colored impurities. For example, comparing this compound to nonsulfonylated aminophenols in azo dye manufacture reveals sharper color profiles and higher fastness, directly affecting textile processing or ink formulation.

    Efficient Production Through Hard-Earned Insights

    Scaling up fine chemicals brings challenges that surface only under real-world conditions; we witness it firsthand. By using high-purity starting materials and taking care with reaction parameters, we improve every subsequent batch. A seemingly simple parameter like agitation speed dramatically impacts yield and purity, lessons we collect over hundreds of runs.

    Waste reduction remains a daily goal. We optimized our filtration and washing sequences to minimize solvent usage and downstream waste treatment, not just because it’s good practice, but since it directly affects operational cost and margin. These savings return as more competitive pricing for our partners, translating into a more sustainable business together. Every process improvement builds on what’s come before. Tight process control prevents batch-to-batch drift, which is critical for industries with strict regulatory demands but also benefits smaller, innovative customers who craft new formulations based on our material.

    Guidance for End Users Based on Facts, not Hype

    Application chemists care most about knowing what the product will do, not just what it is. For years, they have come back with detailed reports about reaction conditions, purification yields, and physical handling challenges. Working together, we’ve fine-tuned both our own process and advised best practices for dissolving, storing, and introducing 2-Amino-4-Methylsulfonyl Phenol in demanding reactions.

    Each batch includes full analytical support, including NMR and HPLC profiles and details on minor impurity markers identified through GC-MS. This goes beyond compliance. Users deserve clear visibility into every analytical detail; a practice we demand from our own critical suppliers as well. Long-term relationships with formulators taught us that small impurity changes often drive reaction outcomes, so transparency and documentation drive confidence more than generic assurances ever could.

    Handling and Storage: Practical Pointers from the Supply Chain

    On the factory floor, we’ve found that handling phenols and aminophenols calls for routine equipment checks. Our in-house protocols for minimizing cross-contamination, controlling static, and limiting dust exposure keep every lot clean and easy to dispense. Climate-controlled warehousing prevents both caking and the rare but stubborn yellowing seen in substandard material from less controlled environments.

    Shipping remains straightforward when products resist agglomeration and absorption of atmospheric water. Our attention to moisture content during packing results in less hassle on arrival at the user’s facility. Customers running automated dispensing find more consistent flow and less downtime, not because we promise it, but because our process improvements show up in their lines. Product age testing confirms over a year of stability under recommended storage, with color and purity holding true well beyond standard timelines.

    Continuous Improvement: What We Learn from Every Batch

    Every time we analyze an off-spec batch, we gain valuable lessons. Maybe the oxidation step ran slightly long, or filtering lagged behind washing on a humid afternoon. Small changes like these affect not just yield, but also color and burn characteristics in analytical combustion. We capture every deviation and carry lessons into the next production run. Batch logs aren’t kept because regulations insist, but because catching a subtle trend early saves time, reduces scrap, and prevents delivery delays.

    Customer input frequently shapes these improvements. Whether they point out minor issues in reactivity or send back advanced assay data, we use their feedback directly to tweak reaction timing, temperature controls, or drying sequences. Over time, these relationships result in a product that fits evolving industry needs, not just the original use case from a decade ago.

    What We’ve Learned from the Marketplace

    Competing phenolic intermediates occasionally enter the market promising lower prices or simplified logistics. Our experience shows that inconsistent upstream chemistry often hides behind a slick offer. Material that isn’t monitored through every phase of production leads to a costly trail of corrective work for users. Once a project relies on consistent material, switching due to quality drift causes requalification, regulatory headaches, and ultimately lost time.

    In these cases, regular discussions with procurement and technical managers reveal a strong preference for visible, tested quality supported by detailed documentation. Our own audits of supplier networks confirm that high-purity chemicals only come from disciplined operations, not from cutting process corners or chasing one-off savings. Stability over variable “bargain” offerings keeps downstream operations running on schedule year after year.

    Our Commitment to Environmental and Operational Safety

    Modern chemical production demands environmental stewardship beyond compliance. In scaling up 2-Amino-4-Methylsulfonyl Phenol, we invested early in closed handling systems, solvent recovery, and energy-efficient drying. Plant operators confirm that these choices create safer, friendlier working conditions and support long-term health. Filtration setups minimize operator exposure, and careful raw material selection leads to fewer downstream disposal issues.

    Local requirements raise the bar for emissions and effluent controls, but our approach always factors in these priorities. Anticipating new regulations or market certifications, we track and record every process input and output. Feedback from audits, both customer-driven and regulatory, feeds directly into revised SOPs and long-term improvement plans. Safeguarding resource use and community impact forms part of our company culture—not just for 2-Amino-4-Methylsulfonyl Phenol, but throughout our product range.

    Knowledge Sharing to Support Safe and Effective Use

    As chemical manufacturers, we see direct evidence that end-users benefit from actionable guidance. We don’t simply ship a box; every delivery comes with tailored recommendations for handling, weighing, and integrating the product into larger batch or continuous-flow operations. Manufacturers of similar products sometimes rely on standardized caution statements, but our advice stems from in-plant experiences: vigilance for clumping after storage in humid regions, best solvents for dissolution, and observations on shelf-life extension with simple humidity control.

    Customers scaling up downstream synthesis from bench to pilot plant often encounter surprises. We walk through these together, reviewing not just the chemical reactivity but also equipment fit, batch timing, and troubleshooting sticky points that slow production. Practical tips, shared circuitously or directly, end up saving hours—sometimes days—as projects reach commercial launch.

    Shaping the Future: New Applications and Methodologies

    Beyond the established dye, pharmaceutical, and crop protection uses, market trends push development in new fields. Materials science teams investigate phenol derivatives like 2-Amino-4-Methylsulfonyl Phenol as starting points for next-generation polymers and coatings with precise thermal or UV response. Success in these sectors depends on purity, consistent melting point, and the ability to introduce new chemistries without cross-impurities.

    Recent research groups report promising modifications in specialty resins and sensor technologies. Our collaboration with external labs and academic consortia offers early access to novel reactions, optimizing the intermediate to fit specialty monomer synthesis or smart material frameworks. This push toward innovation draws from lessons learned during thousands of production hours and strengthens the feedback loop between real-world manufacturing and discovery-driven science.

    Adaptation and Investment in Process Reproducibility

    Demand ebb and flow challenges production sites to adapt quickly. We routinely reinvest in instrumentation, staff training, and quality control to ensure every lot delivers the same results as the last. Analytical chemists in our lab implement the latest methods in separation science, tracking both major and trace components, ensuring nothing escapes notice. Data collection across the entire plant now supports predictive maintenance as well as immediate product control, reducing downtime and unscheduled delays for customers.

    We consider every improvement—not just a cost or regulatory need but a direct investment in our partners’ process security. Lessons learned in our facility, whether tracing a fugitive impurity to a vendor process change or catching a UPS malfunction before a shipping crunch, feed into rigorous daily checklists and longer-term upgrades. The result is a product whose reliability matches our own accountability, batch after batch.

    Summary: Experience-Driven Product Reliability

    After years of manufacturing and refining 2-Amino-4-Methylsulfonyl Phenol, we trust our process and our people to deliver on every order. By focusing on operational transparency, durable relationships, and rigorous analysis at each stage, we support both established and innovative uses without setbacks. Every improvement in our chain, every adjustment in our plant, translates into tangible, user-facing gains. We know this because our users tell us—sometimes with detailed lab data, sometimes with a satisfied note after a smooth batch campaign. Our purpose doesn’t end at production: it carries forward, batch by batch, into the technologies and products our customers create.