Methyl 2-(aminosulfonyl)benzoate

    • Product Name: Methyl 2-(aminosulfonyl)benzoate
    • Chemical Name (IUPAC): Methyl 2-sulfamoylbenzoate
    • CAS No.: 5852-78-8
    • Chemical Formula: C8H9NO4S
    • Form/Physical State: Solid
    • Factroy Site: No.15, Daqing Road Qinglong Chemical Industry Yard, Haimen, Jiangsu Province, P.R. China
    • Price Inquiry: sales9@alchemist-chem.com
    • Manufacturer: Nantong Changhai Food Additive Co., Ltd
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    Specifications

    HS Code

    685026

    Chemical Name Methyl 2-(aminosulfonyl)benzoate
    Molecular Formula C8H9NO4S
    Molecular Weight 215.23 g/mol
    Cas Number 25248-43-5
    Appearance White to off-white solid
    Melting Point 156-160 °C
    Solubility Slightly soluble in water, soluble in organic solvents
    Boiling Point Decomposes before boiling
    Smiles COC(=O)C1=CC=CC=C1S(=O)(=O)N
    Inchi InChI=1S/C8H9NO4S/c1-13-8(10)6-4-2-3-5-7(6)14(9,11)12/h2-5H,1H3,(H2,9,11,12)
    Pubchem Cid 223916
    Storage Temperature Store at 2-8 °C
    Hazard Statements May cause skin and eye irritation

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

    Application of Methyl 2-(aminosulfonyl)benzoate

    Purity 98%: Methyl 2-(aminosulfonyl)benzoate with purity 98% is used in pharmaceutical intermediate synthesis, where it ensures high yield and minimal impurities in target compounds.

    Melting Point 160°C: Methyl 2-(aminosulfonyl)benzoate with a melting point of 160°C is used in solid-state formulation development, where it allows precise thermal processing and stability during manufacturing.

    Molecular Weight 215.22 g/mol: Methyl 2-(aminosulfonyl)benzoate with molecular weight 215.22 g/mol is used in analytical reference standards, where consistent mass enables accurate quantification in chromatographic analysis.

    Particle Size <50 μm: Methyl 2-(aminosulfonyl)benzoate with particle size less than 50 μm is used in fine chemical blending, where uniform dispersion enhances reactivity and homogeneity in composite materials.

    Solubility in Methanol 25 g/L: Methyl 2-(aminosulfonyl)benzoate with solubility in methanol of 25 g/L is used in reaction optimization studies, where reliable dissolution supports efficient screening and reproducibility.

    Stability Temperature up to 120°C: Methyl 2-(aminosulfonyl)benzoate with stability temperature up to 120°C is used in heat-intensive synthesis workflows, where thermal durability prevents degradation and maintains product integrity.

    Packing & Storage
    Packing The chemical is packaged in a 25-gram amber glass bottle with a screw cap, labeled with name, purity, and safety information.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Methyl 2-(aminosulfonyl)benzoate typically holds 12–14 metric tons, packed in 25kg fiber drums.
    Shipping Methyl 2-(aminosulfonyl)benzoate should be shipped in tightly sealed containers, clearly labeled, and protected from moisture and light. Transport in accordance with local regulations for chemicals. Use secondary containment and bubble wrap for cushioning. Ensure accompanying documentation, including safety data sheets, is provided. Avoid exposure to extreme temperatures and handle with appropriate personal protective equipment.
    Storage Methyl 2-(aminosulfonyl)benzoate should be stored in a tightly sealed container, away from moisture and direct sunlight, in a cool, dry, and well-ventilated area. Keep it away from incompatible substances such as strong acids, bases, and oxidizing agents. Clearly label the container, and ensure appropriate safety measures are followed during handling to avoid inhalation, ingestion, or skin contact.
    Shelf Life Methyl 2-(aminosulfonyl)benzoate typically has a shelf life of 2–3 years when stored in a cool, dry, and dark place.
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    More Introduction

    Methyl 2-(aminosulfonyl)benzoate: Reliable Performance from the Manufacturer’s Bench

    Introduction to Methyl 2-(aminosulfonyl)benzoate

    Navigating the world of active chemical ingredients takes more than simply buying a compound and hoping it matches your process. At our plant, Methyl 2-(aminosulfonyl)benzoate stands out for its consistency, predictable behavior under reaction conditions, and robust quality that we have tuned through years of hands-on refinements. Rather than chasing novelty for its own sake, our approach with this product stays rooted in a commitment to reliability and straightforward chemical value.

    Model and Specifications: Manufacturing from the Source

    Our factory produces Methyl 2-(aminosulfonyl)benzoate as a white to off-white crystalline solid with a purity consistently maintained above 98 percent, based on HPLC and NMR validation for every batch. We’ve calibrated our process to deliver a product melting point in the expected range of 171–174°C, narrowing fluctuation through direct feedback from dozens of commercial syntheses rather than just chasing analytical numbers. Our control over the methylation and sulfonamidation steps means minimal side products, resulting in a smooth downstream synthesis experience for every customer.

    We supply this material in both standard kilogram and customer-defined bulk formats, using tight packaging controls to avoid contamination with moisture and airborne dust. Over the years, feedback from users in pharmaceutical, agrochemical, and specialty chemical research has driven us to refine drying protocols and choose the most inert packing materials. The near-absence of residual solvents in the finished material—often undetectable on GC-MS—reflects this focus on practical usability over mere spec sheet claims.

    Understanding the Difference

    Choosing Methyl 2-(aminosulfonyl)benzoate isn’t just a matter of getting a chemical off the shelf. Many end users compare it to common sulfonamide derivatives like Sulfanilamide, or to methyl ester cousins lacking functionalized aromatic rings. Our version, with the methyl ester and para-sulfonamide configuration, brings unique reactivity and synthetic utility. The limited hydrolytic sensitivity of the methyl ester allows for selective deprotection, which is a feature absent in most alternatives with bulkier ester groups. Experienced process chemists often remark on how closely the reactivity pattern aligns with expectations for stepwise coupling or direct arylation.

    Comparisons with close relatives—such as 2-(aminosulfonyl)benzoic acid and ethyl 2-(aminosulfonyl)benzoate—highlight why we stick to a methyl ester. The methyl ester often delivers better solution stability and less byproduct fouling in acylation, transesterification, or amidation steps. Process operators have remarked that using our methyl ester variant, instead of its bulkier or more volatile cousins, makes a measurable difference in column throughput and batch reproducibility.

    Application Experience: What Matters in Practice

    Most customers approach us with goals focused either on fine pharmaceuticals or on synthesizing dye intermediates, and in both cases our history as the actual manufacturer rather than middleman offers significant advantages. The main application involves building more complex sulfonamide-containing active molecules. Chemists value the amino group’s resilience during both bracing oxidations and catalytic couplings, as the para-substituted structure resists unwanted rearrangements or hydrolysis. For nucleophilic aromatic substitution, the added methyl ester opens routes unavailable to a free acid precursor. Instead of leaving customers guessing about batch-to-batch impurity drift, we maintain a tracking system across all outgoing lots, logging analytical signatures.

    From years of manufacturing experience, we know precisely where bottlenecks in scaling up can arise. For example, maintaining moisture content below 0.2 percent extends the shelf life and avoids caking, and this requires both plant equipment maintenance and regular operator training. While laboratory benchmarks might skip these checks, serving multiple large-volume contracts each year keeps us focused on what actually matters on production and scale-up lines. This fidelity to practical concerns keeps our clients’ workflows reliable and cost-predictable.

    Why the Manufacturing Source Matters

    With every outgoing shipment, we bear the direct responsibility for quality, performance in real-world chemistry, and regulatory reporting. Traders often source material from multiple origins, which introduces uncertainty. By contrast, our direct manufacturing control lets us guarantee traceability from raw aromatic acid feedstock through every stage of conversion and purification, culminating in a consistent product that responds to the same handling and reaction conditions every time. Our process chemists oversee the upgrades of reactors and dryers; refinements aren’t abstract—they mean hours saved in customer process troubleshooting and cleaner workups.

    We’ve seen the consequences of poorly controlled intermediates: unplanned side reactions, inconsistent yields, and costly purification steps. These headaches don’t plague clients using our material, because we design for the right balance of reactivity and purification profile. For instance, we leverage decades of in-house analytics—a combination of HPLC, GC-MS, NMR, and FTIR methods—providing a reliable fingerprint with every batch release. Some companies parade certifications without true operational experience. For us, certificates trace back to the actual lab work: consistent purity, physical form, and a minimum of residual byproducts. Problems don’t stay hidden in paperwork; they show up in the product, and we tackle them head-on.

    Roles in Research and Development

    Our collaborations with R&D labs illuminate how subtle differences in the manufacturing process can ripple into end results. Some clients have tailored their protocols specifically around our implementation of Methyl 2-(aminosulfonyl)benzoate because it behaves so predictably under heat or in polar solvents. During scale-up campaigns, technicians have noted shorter reaction times and higher isolated yields, tying these wins directly to reliable input materials. We document every process tweak, so both returning and first-time clients receive not simply the product, but the latest improvements, ironed out through our own hands-on trial and error.

    End-use feedback shapes future batches. In cases where a certain application required minimized color-forming impurities, we adjusted the filtration and recrystallization steps, sharing this learning back with the customer to enable cleaner downstream production. Open lines of communication let us adapt in real time, which traders and brokers simply can’t achieve with patchwork, indirect oversight.

    Addressing Common Challenges

    In real practice, formulating a process isn’t as simple as matching a catalog number. For Methyl 2-(aminosulfonyl)benzoate, questions often pop up around long-term storage or compatibility with metal-catalyzed systems. Our engineers have refined packaging—foil-lined, moisture-proof drums—to guard both against hydrolysis and the slow caking that sometimes plagues extended stocks. We have handled customer complaints about off-odors or micro-contamination in past sourced batches from brokers, highlighting the peace of mind our vertical approach brings. Our periodic equipment upgrades focus directly on reducing the number and scale of visible and invisible contaminants, keeping shelf and process life optimal.

    In terms of process compatibility, our own pilot teams have found this compound resists decomposition during Suzuki-coupling and similar transformations, even under rigorous base or heat conditions. The methyl ester leaves the door open to selective cleavage or further derivatization, which broadens the target molecule possibilities. Large batch users draw confidence from our stability studies, knowing every batch is matched against historical libraries for consistency. Minor details, like consistent sieve mesh in packaging, keep every operator working with a powder that blends, measures, and dissolves just as expected, slashing downtime and rework costs.

    Supporting Reliable and Sustainable Chemistry

    One area we keep circling back to involves sustainable sourcing and lower-waste synthesis. Our current method for Methyl 2-(aminosulfonyl)benzoate evolves as the regulatory environment sharpens around solvent use and waste stream management. By keeping sulfonylating reagents and methylation auxiliaries in tight control and recycling intermediates, we have shrunk waste volumes by over 30 percent since first scaling up the process. This isn’t abstract: reduced hazardous byproduct means safer handling for both our workers and downstream users, and an easier time passing compliance audits in finished product markets.

    Clients who care about supply chain transparency see direct benefit in our traceable, single-source route. We track every major and minor constituent, document every solvent swap, and ensure our downstream partners get audited process summaries. Keeping hazards minimized at every stage isn’t a side project—at our scale, every percent of lower waste and cleaner exhaust discharges adds up to lower costs and higher trust with regulators and international auditors. Our experience on the line shows that responsible chemical stewardship makes for business continuity, not just feel-good marketing.

    Continuity and Innovation: Balancing Legacy with Progress

    Manufacturing fine and intermediate chemicals draws on a blend of established protocols, evolving compliance, and honest feedback loops. Our plant started producing Methyl 2-(aminosulfonyl)benzoate years before many competitors, and every learning—big or small—feeds back into our operational playbook. Whether it’s adapting reactor temperatures for better yield, or switching filtering aids to shave residual color, real-time input drives continuous improvement. Direct troubleshooting after product shipment also shapes every run: rapid adjustments, not email relays between trading desks, mean your next order reflects direct answers to issues and needs from your shop floor. This is how we push the product forward, batch after batch.

    We don’t chase every new synthetic fad or swap raw material suppliers on a whim. Incremental gains—leaner purification sequences, tighter impurity targets, longer shelf stability—stem from the real-world discipline that only direct manufacturers develop. Visits from industrial partners, feedback from process engineers, and shared scale-up data inform our action plan for every six-month cycle. Staying ahead means documenting and acting on every “small” improvement, not hiding behind warehouse stockpiles or imported intermediary runs.

    Why Consistency Counts: Straight Talk from the Manufacturing Floor

    Ask any process chemist where the biggest headaches come from, and inconsistency lands near the top of the list. We have seen clients facing unplanned variations in product quality from off-brand intermediates, and those problems end up eating more time and money than anticipated. Material manufactured from the source means direct answers on lot-to-lot variation, impurity profile, and performance in downstream steps. That kind of reliability frees up our clients’ labs and manufacturing sites to focus on innovation, not troubleshooting or after-the-fact verification.

    Every chemist knows that theoretical yield means very little if the actual material brings hidden surprises. Having experienced the delays and downtime of chasing out-of-spec batches, we put that experience back into our screening and QC process. Our manufacturing team runs extra process-control checkpoints, especially on critical features like residual moisture and byproduct levels. Investments in training and analytical infrastructure show up in smaller waste streams, quicker process qualification, and fewer customer complaints.

    Practical Recommendations: Making the Product Work Harder

    For researchers and commercial operators, straightforward advice on handling often makes the difference between a seamless bench run and a week lost to rework. Methyl 2-(aminosulfonyl)benzoate’s solubility in polar organic solvents and moderate resistance to ambient hydrolysis make it well-suited for staged synthesis or for storage beyond the typical turnover window. The tight melting range gives clear visual cues during identity verification; no off-odor or color-forming impurities signal high batch purity.

    Process chemists developing new analogs appreciate that the para-amino orientation lets them couple with a broader range of acyl chlorides or isocyanates, and our direct manufacturing oversight earns trust through clear, batch-stamped analytical reports en route. Customers working with sensitive coupling agents tune their solvent blends and reagent ratios as required, counting on our technical team to provide data from the latest batch or suggest tweaks based on past large-scale experience. By investing in operator training and line maintenance, we keep every outgoing lot at the expected performance standard.

    Why a Manufacturer’s Perspective Matters

    The market for fine benzene sulfonamides evolves quickly, often shaped by regulatory changes, shifts in supply chain logistics, or new process patent filings. These changes don’t live in abstract “industry news” articles—they hit us in the day-to-day routines of sourcing, synthesis, purification, and logistics. We meet changing specifications directly: changes in raw material sourcing, solvent restrictions, or accepted impurity thresholds translate to tangible adjustments on our shop floor and at the quality control desk. Every product that leaves our factory reflects those hundreds of small, invisible decisions driven by regulatory experience and years of chemical practice.

    Because our team steers every step, from receiving starting acid to tracking product through the last drum, we notice shifts in solvent volatility or new impurity classes as soon as they arise. We troubleshoot and fix problems immediately, so recalling or reworking product after shipment has become vanishingly rare. Traders, resellers, and brokers can’t duplicate this degree of control or technical accountability. Our long-term buyers have learned this difference through years of repeat business and real-world use.

    Status and Outlook: The Road Ahead

    Continuous investment in refining our process and improving our own expertise brings cumulative benefits—the kind that compound over dozens of production cycles, not just one marketing pitch. Our Methyl 2-(aminosulfonyl)benzoate now serves a broader range of applications and scales than it did at first, and this adaptability grows directly out of conversation and closeness with actual process users, not removed commercial channels. Each year, we assess both external regulatory updates and our direct manufacturing metrics, tuning for both efficiency and compliance, not sacrificing one for the other.

    Our focus remains on delivering practical, real-world value to those who use this compound as a building block for pharmaceutical, dye, or specialty material innovation. As both global and local regulatory environments raise the bar, those years of hands-on manufacturing experience sharpen our ability to keep quality, safety, and consistency moving forward.

    Conclusion: A Partner Invested in Chemical Success

    Methyl 2-(aminosulfonyl)benzoate, produced by seasoned chemists who know the ins and outs of synthesis and purification, brings more than just a molecule in a drum. It delivers the reassurance of thoroughly documented, factory-direct quality, formed by countless recalibrations based on real lab and plant performance across industries. Our team stands behind every batch, drawing on our own hands-on learning and a readiness to tackle the next challenge together. Continuing to refine our processes and share our expertise, we help drive innovation and deliver reliability where it matters most—in the actual work of science and industry.