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Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide

    • Product Name Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide
    • Alias Ethyl 4-hydroxy-2-methyl-1,2-benzothiazine-3-carboxylate-1,1-dioxide
    • Einecs 259-486-6
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry sales7@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    127169

    Iupac Name Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
    Molecular Formula C11H11NO5S
    Molecular Weight 269.27 g/mol
    Cas Number 123969-39-7
    Appearance Off-white to light yellow powder
    Melting Point 165-170 °C
    Solubility Slightly soluble in water, soluble in organic solvents
    Purity Typically >98%
    Storage Conditions Store in a cool, dry place, keep container tightly closed
    Smiles CCOC(=O)C1=C(N(S(=O)(=O)C2=CC=CC=C21)C)O
    Inchi InChI=1S/C11H11NO5S/c1-3-17-11(14)8-9(13)12(2)18(15,16)10-6-4-5-7-10/h4-8,13H,3H2,1-2H3
    Logp 2.13

    As an accredited Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, opaque HDPE bottle containing 100 grams of Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide, sealed with tamper-evident cap.
    Shipping This chemical, Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide, is shipped in tightly sealed containers, protected from moisture and light. It is typically transported as a solid under ambient conditions, adhering to all relevant hazardous material regulations, with appropriate labeling and documentation to ensure safe and compliant delivery.
    Storage Store Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide in a tightly sealed container, protected from light and moisture. Keep in a cool, dry, well-ventilated area away from incompatible substances such as strong acids or bases. Maintain storage at room temperature, avoiding excessive heat and direct sunlight. Ensure all containers are properly labeled and handled following standard chemical safety protocols.
    Application of Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide

    Applications of Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide in Industrial Manufacturing

    Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, as an intermediate with targeted reactivity, plays a crucial role in the synthesis of specialty chemicals. This material supports downstream production in pharmaceutical, agrochemical, pigment, and polymer industries. Our manufacturing processes ensure consistent quality for integration in advanced chemical formulations.

    1. Nonsteroidal Anti-Inflammatory Drug (NSAID) Synthesis

    This intermediate serves as a building block for specific NSAIDs, particularly in the production of chiral sultam-based drugs such as piroxicam and lornoxicam. Manufacturers employ it in multi-step pharmaceutical syntheses, requiring high purity and controlled isomer ratios. The material undergoes condensation, cyclization, and subsequent functionalization under GMP-compliant environments to achieve batch consistency for regulated markets.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • USP and EP monograph references for piroxicam/lornoxicam APIs
    • FDA 21 CFR Part 211 for finished pharmaceuticals
    • EU Guidelines for pharmaceutical intermediates

    Typical usage ratio

    • Forms 1.1–1.2 molar equivalents relative to final API yield; exact amount depends on process efficiency and recovery adjustments

    Downstream process integration

    • Used in the intermediate step sequence prior to final API crystallization and purification
    • Involved in preparative-scale cyclizations and sulfonation steps in cGMP suites

    Final product types

    • Piroxicam Active Pharmaceutical Ingredient
    • Lornoxicam Active Pharmaceutical Ingredient
    • Pharmaceutical grade finished tablets or capsules containing these APIs

    2. Agrochemical Active Ingredient Synthesis

    This compound acts as a core intermediate for sulfonamide-based pesticides and fungicides. Downstream manufacturers use it for constructing heterocyclic scaffolds essential in crop protection actives. Its defined chemical structure adheres to ISO 9001/14001 systems, avoiding contamination in large-scale synthesis and supporting the registration requirements for formulated agrochemical products.

    Industry compliance standards

    • FAO/WHO specifications for pesticide technical materials
    • REACH Regulation (EC) No 1907/2006 for substance registration
    • ISO 9001 for quality management during synthesis
    • Good Laboratory Practice (GLP) for process validation

    Typical usage ratio

    • Usually 0.8–1.4 molar equivalents, tuned according to downstream heterocyclization efficiency and waste minimization protocols

    Downstream process integration

    • Introduced after initial coupling to form benzothiazine core, preceding substitution and sulfonamide functionalization steps
    • Used in technical active ingredient plants before formulation facility transfer

    Final product types

    • Sulfonamide fungicide technical grade
    • Sulfonamide pesticide active ingredient concentrate
    • Water-dispersible agrochemical formulations

    3. Dye and Pigment Intermediate for Industrial Colorants

    This compound is incorporated as a ring-modifying intermediate by colorant producers who require heterocyclic components for high-performance dyes. It provides a stable scaffold during the synthesis of benzothiazine-derived pigments used in automotive, plastic, and textile applications, where batch traceability and minimal impurity profiles are critical for consistent tint and dispersibility.

    Industry compliance standards

    • ISO 9001 quality management for pigment production
    • REACH Annex XVII (restricted substances for pigments)
    • RoHS Directive 2011/65/EU for heavy metal limits in colorants
    • Oeko-Tex Standard 100 for textiles (applicable for pigment use)

    Typical usage ratio

    • Ranges from 0.5–1.0 molar equivalent, custom-adjusted per dye synthetic route for optimizing chromophore yield and intensity

    Downstream process integration

    • Acts as a coupling agent in the early oxidative or sulfonation stages
    • Enters batch reactors before pigment isolation and milling

    Final product types

    • Benzothiazine-based industrial pigments
    • Specialty dyestuffs for plastics or textiles
    • Automotive or coil coating colorant dispersions

    4. Monomer Precursor for Specialty Polymer Synthesis

    Specialty polymer manufacturers use this molecule to introduce sulfonic acid and thiazine moieties into tailored polymer structures. Its reactivity enables precise control of polymer branching or crosslinking during the early stages of step-growth or free-radical polymerization, supporting technical applications such as ion-exchange membranes and anti-static coatings. Process routes follow rigorous QC and traceability to maintain reproducibility batch-to-batch.

    Industry compliance standards

    • ISO 9001 and ISO 14001 for quality and environmental management systems
    • REACH registration for monomers intended for polymers
    • UL 94 for flammability rating of polymer compounds (where applicable)
    • ASTM D256 for impact resistance testing (for end-use polymers)

    Typical usage ratio

    • 0.2–0.6 molar equivalents relative to the main comonomer, selected based on target polymer molecular weight and branching density requirements

    Downstream process integration

    • Added at pre-polymerization or chain extension stage after initial monomer activation
    • Enters reaction vessel prior to work-up and extrusion or casting

    Final product types

    • Ion-exchange membranes for water treatment
    • Antistatic polymer coatings
    • Functionalized engineering plastics
    Free Quote

    Competitive Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide: The Precision Chemist’s Ally

    Living With Our Molecule: Real Manufacturing, Real Results

    Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide has been a steadfast fixture in our production line for a good while now. Every kilogram you see rolling off our finishing line has passed through hands that know this molecule better than most know their own toolkit. From raw material selection to the last purity test, there’s pride and grit behind every batch. In real manufacturing, you recognize that handling a molecule like this isn’t about box ticking — it’s about discipline, understanding the character of your feedstock, staying vigilant for the small variations that could ripple through your system, and having the skill to spot oddities before they drift downstream.

    By focusing on chemistry that delivers both robust performance and reproducibility, we’ve carved out a core process for Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide that reflects decades of learning under pressure. Sitting in meetings with labs and pilot operators, listening to their stories about color nuance, filter cake textures, or batch-to-batch behavior, you come to realize — at ground level — that specifications alone don’t guarantee a good product. Someone has to take responsibility for those grams and milliliters, for getting it truly right each time.

    Model and Specifications: Getting the Details Right, Every Time

    In our shop, we work with the 98% minimum purity model by default, which caters to the most demanding pharmaceutical and research clients. High purity isn’t a marketing badge here; it’s what our customers genuinely require to avoid chain reactions of complications in their synthesis work. Rigorous internal controls, repeated HPLC tests, and skilled purification steps lead up to that number, which wasn’t plucked from the air—it was the threshold at which we started seeing the stubborn little side reactions drop out and downstream workflows run smoother.

    Moisture content is another priority. We keep tight control on our drying ovens because excess water easily degrades sensitive compounds and causes noisy results in analytics or formulations. From past years monitoring how subtle shifts in residual moisture affect shelf stability and handling, it became clear that “close enough” never is. The batches that dry just a bit more are the ones that pack, pour, and dissolve reliably in the next customer’s plant—something you learn by fielding urgent calls when something slips.

    Putting This Compound to Work: Where the Real Impact Happens

    Researchers and process chemists reach for Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide when they want specialty intermediates for advanced heterocyclic chemistry. In actual practice, what makes this molecule valuable is its reactive profile—in the lab, it’s known to be a flexible and consistent partner in building complex targets for pharmaceuticals and fine chemicals. We’ve watched as groups around the world pull it in as a scaffold for crafting new sulfonamide derivatives, or as a synthon in multi-step processes for bioactive benzothiazine drugs. Precision in molecular structure and fewer process impurities reduce risk of downstream by-products, which can otherwise cost weeks in labor and analytical troubleshooting to clean up.

    Another advantage: this molecule slips into formulations without causing new compatibility headaches. Repeat customers in contract synthesis have told us that reliable performance in scale-up comes partly from knowing exactly what else might hitch a ride from our barrels—so we double down on clarity with our certificates and lot histories. Every tweak, improvement, or new protocol we introduce gets field tested in-house, because we do not view success as an anonymous transaction but as a shared result between manufacturer and user.

    Standout Differences from Other Sulfonamide and Benzothiazine Intermediates

    It’s easy to lump our Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide in with generic sulfonamide intermediates, but when you’re standing at the reactor, you quickly see where differences matter. Not all 1,2-benzothiazine derivatives dissolve, crystallize, or hold to purity in the same way. Other esters or substituted analogues tend to show more hydrolysis, especially under humid storage, so you wind up with inconsistent weights or even partial degradation before you clock in for weighing and dispensing.

    Some labs that tried off-the-shelf variations came to us after facing crystallization failures or excessive byproducts in the final coupling steps. Our engineered process strips the residual sulfur- or nitrogen-based contaminants that seem trivial at first glance, but down the line can trigger bulk off-odors or stubborn color formation in tablets and finished materials.

    Competitors sometimes ship in loose powder or in less stable granulate, but based on years watching our own stock evolve during shipping crises, we insist on packaging that limits loss, spillage, and exposure to light. We routinely open old test samples from cold storage to monitor how real-life time on the shelf affects color, grain, and solubility, so we can flag shifts before they reach a customer. Tweaking the drying cycle or overhauling our blend in response to feedback from actual plants gives us critical insight—much more than theoretical discussions about standardization ever could.

    Using the Compound Safely: Our Practice-Driven Approach

    Plenty of safety literature exists, but strict adherence grows from what we witnessed ourselves. In our facility, loading the reactors and handling this compound calls for careful PPE and proven containment. Taking shortcuts only once in a hundred shifts is too much; a moment’s lapse means risking skin or eye contact. Our experience led us to refine our protocols for weighing, transfer, and cleanup. Spilled powder gets dampened before sweeping to minimize airborne dust—no exceptions, regardless of shift schedules or workload pressure.

    Regular discussions with downstream partners taught us which glove materials hold up under contact and which containers genuinely seal out moisture. Our shipping team doesn’t just follow a list, they’re trained to inspect, handle, and store with an eye toward anything that might compromise the next user’s safety, not just regulatory compliance. We track the substance’s journey from our reactors to the customer’s lab, learning from every transit glitch or handling concern, so our guidance comes from walked miles, not just desk work.

    Continuous Innovation: The Manufacturer’s Commitment

    Standing behind this product means more than keeping the line moving. Our R&D beats at the pace of customer feedback and unexpected hiccups on the production floor. The drive for cleaner batches, finer particle sizes, and extended shelf life follows from close calls and the discoveries buried in failed lots. Sometimes it takes rerunning a synthesis from the ground up to iron out the causes of sticking, caking, or contamination.

    True progress comes from close technical partnerships. Over the years, chemists came to us with plans to push up the throughput, or dial in a specific impurity profile. More than a few projects have forced us to revamp purification steps, explore alternative catalysts, or swap reagent suppliers altogether. Those upgrades weren’t wish lists — they were answers to real-world pain points: production slowdowns, wasted material, or costly rework.

    One instance that sticks out involved a new solvent system—driven by a customer’s constraints. The process chemists on our side found a way to adjust our neutralization step, which wound up not only fixing that batch’s solubility glitch, but also shaving hours off our routine downstream cleanups. It’s this constant “what if” mentality, informed by honest conversation with users, that keeps us inching forward even after years with the same molecule.

    Traceability: Recording Every Lot’s Story

    Nobody forgets the time that a downstream partner traced their issue back to a rogue shipment. Since then, we built a culture around full transparency. Lot numbers tie back to every important piece of the production puzzle—who worked, what feeds we ran, which shifts handled QC, and where packaging came from. None of this was bolted on after the fact; it grew from lived experience facing tough customer queries or agency inspections.

    We keep internal notes and trend graphs not just for regulatory checkboxes but for practical insight: which suppliers’ raw material yields the lowest noise in our analytics, which process tweaks led to cleaner product, and which shipment routes really hold up in all seasons. Personnel know that every barrel could someday be called up for scrutiny, and that honesty and detail in records protect us and our reputation. That’s how manufacturing confidence grows — not just from having the right certificates, but from embedding traceability into the daily rhythm.

    Supporting Discovery: How Our Chemistry Touches Real-World Applications

    Many downstream applications never make headlines, but in our business, the unsung contributions matter just as much as the headline-grabbing breakthroughs. Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide acts as a molecular stepping stone in several pharmaceutical syntheses that underpin essential medicines. Peering into those projects, you realize that batch-to-batch consistency, purity, and reliable delivery make the difference between a promising lab result on paper and a viable, scalable commercial process.

    We’ve watched teams leverage our compound to probe new chemical spaces, explore novel drug scaffolds, and challenge conventional routes to sulfonamide-based therapies. Seeing our labeled drums in research updates, journal articles, or even just in returned samples from stability studies connects us—as makers—to a broader scientific endeavor. It reinforces the idea that every product we send out journeys onward, forming new links in the intricate chain of medicine and material discovery.

    Responding to Bottlenecks and Supply Risks

    Markets run on reliability. In the tightest windows, being able to source critical intermediates quickly, in the right quantity and quality, can decide the fate of entire R&D budgets or production schedules. Floods, factory incidents, global transport hiccups— we’ve ridden out more than one wave that forced us to rethink logistics, raw material storage, and customer communication. It was in those moments the resilience of our crew and process really proved itself.

    There are no shortcuts to resilience. Long-term strategies grew out of hard lessons: diversifying supplier bases, holding back-up stock for critical reagents, investing in dedicated storage, and running “what-if” scenarios ahead of time. Maintaining buffer stocks and refining our forecasts means we can ship out even in turbulent times, without weakening on purity or service. It sometimes costs more, but in the manufacturing world, reputation is a currency you never want to spend down.

    Environmental Responsibility: Building Good Practices on the Production Floor

    Environmental impact starts with the small, day-to-day choices on our site. Real accountability in chemistry means auditing your waste streams, rethinking water usage, and building in solvent recovery where possible. We constantly evaluate our own footprint— not to pad an eco-section on a website, but because months of work can vanish overnight with a regulatory infraction or reputational hit.

    Solvent choices, reaction temperatures, batch sizing—every parameter is reviewed not just for yields or cost, but for downstream emissions and clean-up requirements. Partnering with recyclers and staying active in local industrial eco-initiatives keeps us informed of upcoming restrictions or technical innovations that might impact our future. Looking out for neighbors and staff means making honest commitments—on paper and in practice—to reduce accidents, reactive discharge, and chemical residuals.

    Looking Ahead: Commitment Beyond the Order Form

    Molecular manufacturing changes with new regulations, customer needs, and the unpredictable twists of the supply chain world. Our commitment to Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide is not static. We invest in updated testing, process audits, and technical training for our staff, so new requirements or contamination insights are met not with panic but with proven protocols. Continuous review and swift adaptation have kept our product relevant and reliable across evolving applications.

    Practical partnerships stand behind every shipment. Whether facing a last-minute spec change or an escalated need for custom documentation, we work with chemists, engineers, and quality leaders to deliver not just a product, but a full-service solution from our plant to their project. This approach has built trust networks over years—connections that don’t appear in product catalogs but carry real weight in decision-making rooms worldwide.

    What Excellence Really Means for Our Product

    The best measure of quality lives outside paper specifications. It shows itself when products dissolve without fuss, when impurities never rise to the level of concern, when shipments arrive as expected, and when technical support comes from those with real production experience. For Ethyl 4-Hydroxy-2-Methyl-2H-1,2-Benzothiazine-3-Carboxylate 1,1-Dioxide, every bottle tells its own story—of safe handling, careful transition down the supply chain, and reliability amidst a landscape where every small error grows costly.

    Looking at the landscape of similar intermediates, it becomes evident, if you’ve worked the chemistry line, that small manufacturer choices cascade into real differences for those using the end product. Investing in people, gear, and process stability isn’t just about checking boxes for today’s demands but about embedding resilience and responsibility for whatever comes next in our customers’ fields. Each day’s production here isn’t the end— it’s the first chapter in someone else’s critical discovery.