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1,2,3-Thiadiazole-4-Carboxylic Acid

    • Product Name 1,2,3-Thiadiazole-4-Carboxylic Acid
    • Alias 4-Carboxy-1,2,3-thiadiazole
    • Einecs 248-879-8
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    357161

    Productname 1,2,3-Thiadiazole-4-Carboxylic Acid
    Molecularformula C3H2N2O2S
    Molecularweight 130.13
    Casnumber 3973-08-8
    Appearance White to off-white solid
    Meltingpoint 150-154 °C
    Solubility Slightly soluble in water
    Smiles C1=NN=C(S1)C(=O)O
    Inchi InChI=1S/C3H2N2O2S/c6-3(7)2-1-4-5-8-2/h1H,(H,6,7)
    Synonyms 4-Carboxy-1,2,3-thiadiazole
    Storagetemperature Store at room temperature
    Purity Typically ≥98%

    As an accredited 1,2,3-Thiadiazole-4-Carboxylic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A sealed 25g amber glass bottle, labeled "1,2,3-Thiadiazole-4-Carboxylic Acid," includes hazard pictograms and batch information.
    Shipping **Shipping Description for 1,2,3-Thiadiazole-4-Carboxylic Acid:** 1,2,3-Thiadiazole-4-Carboxylic Acid should be shipped in tightly sealed containers, protected from moisture, heat, and direct sunlight. Handle with appropriate chemical safety precautions. Comply with all local, national, and international regulations for the transport of chemicals; not classified as hazardous for transport under most standards.
    Storage Store **1,2,3-Thiadiazole-4-Carboxylic Acid** in a tightly sealed container, in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizing agents. Keep the container clearly labeled, avoid moisture exposure, and follow all relevant chemical storage protocols, including using appropriate personal protective equipment (PPE) when handling the substance.
    Application of 1,2,3-Thiadiazole-4-Carboxylic Acid

    Applications of 1,2,3-Thiadiazole-4-Carboxylic Acid in Industrial Manufacturing

    1,2,3-Thiadiazole-4-carboxylic acid serves as a specialized building block in several advanced industrial sectors. As the direct manufacturer, we support customers in pharmaceutical synthesis, agrochemical intermediates, specialty dye production, corrosion inhibitors, and advanced polymer additives. The sections below detail how downstream industries incorporate this chemical, with strictly factual compliance, typical ratios, technical integration, and final product outcomes.

    1. Pharmaceutical Intermediate Synthesis

    Pharmaceutical manufacturers employ 1,2,3-thiadiazole-4-carboxylic acid as a scaffold for API (active pharmaceutical ingredient) development, specifically in anti-infective and anti-inflammatory drug classes. The material enters amidation, esterification, or heterocyclic extension steps, contributing a thiadiazole moiety resistant to metabolic breakdown. API synthesis demands batch traceability and stringent impurity profiling, with each lot integrated in early or mid-stage routes depending on the target compound.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice (GMP) for Active Pharmaceutical Ingredients
    • USP, Ph. Eur., JP monographs for starting materials (where applicable)
    • FDA 21 CFR Part 211 (where used in U.S. pharmaceutical processes)
    • EMEA Guidance for Chemical Pharmaceutical Ingredients (CPIs) traceability

    Typical usage ratio

    • 0.2–1.0 molar equivalents relative to the core pharmaceutical structure, variable per synthetic route; ratio optimized based on yield and isolation of the target intermediate

    Downstream process integration

    • Charged to reaction vessels as an initial nucleophile or as an intermediate coupling agent; employed before API finalization or final salt formation steps

    Final product types

    • Anti-infective drug APIs such as cephalosporin derivatives
    • Anti-inflammatory agents containing the thiadiazole ring
    • Pharmaceutical intermediates for further elaboration in multi-step synthesis
    • Drug metabolite analogues for toxicology profiling

    2. Agrochemical Intermediate Manufacturing

    Crop protection blenders and agrochemical formulators use this material as a key intermediate in selective herbicide and fungicide synthesis. The acid group permits alkylation and condensation steps, enabling the production of sulfur- and nitrogen-rich molecules with targeted pesticidal activity profiles. The chemical’s high purity prevents cross-contamination typical in multi-use agrochemical lines, supporting compliance with global agricultural safety regulations.

    Industry compliance standards

    • FAO/WHO “Specifications and evaluations for agricultural pesticides”
    • ISO 9001:2015 QA/QC management for input traceability
    • China Ministry of Agriculture GB 2763 Maximum Residue Limits
    • REACH Regulation (EC) No 1907/2006 for import/export in Europe

    Typical usage ratio

    • 5–15% by weight of the core synthetic batch; precise ratio set according to the designed molecular target and desired bioactivity window

    Downstream process integration

    • Input to batch reactors during the heterocyclyzation or ring-closing steps; typically involved in the functionalization before active ingredient crystallization

    Final product types

    • Selective herbicide technical concentrates (e.g., for post-emergent weed control)
    • Systemic fungicide precursors for seed treatment blends
    • Soil sterilant intermediates for arable land use
    • Registered pesticide formulation actives (after further downstream transformation)

    3. Specialty Dye and Pigment Synthesis

    Dye and pigment manufacturers incorporate 1,2,3-thiadiazole-4-carboxylic acid in the production of sulfur- and nitrogen-containing chromophores. The carboxylic acid allows precise coupling with diazonium components, providing colorant stability and fastness. Downstream QC includes HPLC and spectrophotometric purity checks, necessary for ensuring batch-to-batch color fidelity in textile, leather, and plastics applications. Only batch processes designed for specialty dye synthesis utilize this chemical, avoiding interference with bulk pigment lines.

    Industry compliance standards

    • Zhejiang Ecological Textile Standard FZ/T 01057 for dyestuff purity
    • OEKO-TEX Standard 100 for regulated contaminant limits
    • EN 71-3 Toy Safety (for dyes in child-intended end products)
    • ISO 105 durability and colorfastness benchmarks

    Typical usage ratio

    • 0.5–3.0% by weight, dependent on the intended absorption spectrum and chromophore density

    Downstream process integration

    • Dosed during azo coupling or as a functional group donor in synthetic dye production; reacts during the main condensation before final blending

    Final product types

    • Reactive dyes for cotton and cellulosic fibers
    • Sulfur dyes for leather coloration
    • Pigmented masterbatches for engineering plastics
    • High-performance textile printing inks

    4. Corrosion Inhibitor Formulation

    Industrial lubricant and cooling system chemical formulators employ this material as a building block for organic corrosion inhibitors. Its thiadiazole structure donates electron-rich sites for binding with metal substrates, particularly ferrous alloys. Production lines incorporate it during in situ polymerization or salt formation to maximize surface-passivating performance. Precise ratio and integration points depend on the metal composition and the system’s thermal and oxidative conditions, as validated by field and lab testing for each application sector.

    Industry compliance standards

    • ASTM D665 for rust-preventive characteristics in lubricating oils
    • ISO 8044 for metallic corrosion definitions and test environments
    • EU CLP Regulation (EC) No 1272/2008 for health/environmental labeling
    • RoHS 2011/65/EU for electronics cooling systems

    Typical usage ratio

    • 0.1–0.8% by weight of the total corrosion inhibitor blend; ratio adjusted for short-term versus extended protection requirements

    Downstream process integration

    • Blended in the secondary formulation stage; may be introduced during bulk blending or as part of polymer-bound additive packages

    Final product types

    • Hydraulic fluid corrosion inhibitors
    • Industrial gear oil additive packages
    • Metalworking fluid concentrate boosters
    • Closed-system antifreeze corrosion inhibitor blends

    5. Advanced Polymer Additive Synthesis

    Polymer resin manufacturers use this compound in the synthesis of performance-enhancing additives. It acts as a chain modifier in engineering thermoplastics and thermosets, imparting chemical resistance and flame retardancy via its heterocyclic nitrogen–sulfur framework. The acid group reacts in esterification or amidation with resin backbones, securing the additive in the final polymer matrix. Quality control includes FTIR confirmation of successful linkage and TGA analysis for thermal stability assessments, all performed within ISO-certified production settings.

    Industry compliance standards

    • ISO 11357-6 Differential Scanning Calorimetry protocols for polymers
    • UL 94 Flame Classification for plastics
    • RoHS 2011/65/EU for halogen-free flame retardant compliance
    • REACH SVHC monitoring for additive registration

    Typical usage ratio

    • 0.3–2.0% by weight of the total polymer batch; dosage set per polymer type (polyamide, polyester) and required chemical resistance or fire rating

    Downstream process integration

    • Added directly during resin polymerization or in the melt blending phase; fully reacted into the polymer network or compounded as a masterbatch additive

    Final product types

    • Flame-retardant polyamide pellets for electronics housings
    • Chemically resistant polyester engineering plastics
    • Plasticizer additives for thermoset resin flooring
    • Automotive interior polymer components meeting OEM flammability standards
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    Certification & Compliance
    More Introduction

    Introducing 1,2,3-Thiadiazole-4-Carboxylic Acid: Value from Experience and Reliable Chemical Engineering

    Real World Engineering Demands Precision

    Every time a new molecule works out in the plant, our whole floor feels that charge—a shared pride in translating chemist’s vision into steady reality. That push for better function in fine chemicals, pharmaceuticals, and crop chemistry keeps our teams on the tools and testing all day. When we focused on 1,2,3-thiadiazole-4-carboxylic acid, it was not just about supplying another name on a catalog, but actually building confidence with those who depend on our products through tough applications and critical synthesis steps.

    Why 1,2,3-Thiadiazole-4-Carboxylic Acid Matters in Real Operations

    Teams in pharmaceutical R&D and agrochemical formulation face stricter controls every year. We keep that in mind during process development. 1,2,3-Thiadiazole-4-carboxylic acid takes on a specific significance here, serving as a versatile heterocyclic scaffold. Medicinal chemists use this molecule to build advanced drugs, especially in early-stage discovery where bench yield, stability, and performance matter more than broad claims. In our chemical plant, the team’s hands-on experience shows that consistency in purity, grain size, and minimal byproduct formation pays off all the way down the chain. We refine our synthetic route regularly, watching for lower waste streams and tighter product peaks on HPLC and NMR scans.

    For those in the agrochemicals sector, using solid intermediates such as this means easier formulation of new pesticides or plant regulators. You need more than generic feedstock: the key is making sure every batch behaves reliably under downstream conditions, whether you’re scaling up or testing at field level. Our batches produce clean spectra and pass impurity screens that can sometimes miss other sources.

    Specifications That Help Real Labs Get to Results Faster

    We tailor our process to eliminate the common headaches—tricky separations, stubborn color bodies, or moisture that throws off downstream reactions. Recent feedback from formulation chemists and QC labs led us to establish benchmarks they trust: typical batch purity of over 99.5% (confirmed regularly by in-house HPLC and NMR protocols), and particulate sizes that avoid dust or clump issues. During scale-up for several international partners, we tracked batch records tightly and analyzed actual process deviations, not just recommended conditions.

    We manufacture 1,2,3-thiadiazole-4-carboxylic acid in several grades, always disclosing what’s in the drum and what is not. If a batch goes off-spec, we trace it back, analyze, and include that information in our next team review. The actual model we supply follows the needs of the research or plant process, letting users avoid spending lab hours re-checking simple identity or solubility data. We rarely have returns or complaints, but if quality dips, we face that directly.

    Finding the Right Fit: Not All Thiadiazole Products Act the Same

    We see a lot of confusion about naming in this chemistry space. People who phone us up often mistake 1,2,3-thiadiazole-4-carboxylic acid with 1,3,4-thiadiazole derivatives, and expect identical reactivity or solubility. The arrangement of the heteroatoms and the placement of the carboxylic group bring out big changes in both electronic properties and handling. In real reaction runs, you can’t smoothly replace our 1,2,3 compound with a cousin and expect yields or reaction times to match. Over decades, we’ve helped teams troubleshoot failed reactions by pointing out these subtle differences. Careful NMR and IR shows distinctly shifted peaks, something you don’t spot just by reading off a CAS number or a one-line MSDS.

    Another key distinction in our process: attention to trace residues and organic impurities. Other thiadiazole acids on the global market sometimes carry solvent traces, or show yellow/brown hues from incomplete oxidation steps. Our QC personnel grind out extra TLC and GC runs just to make sure no drift occurs between drums, since spotty batches can slow down R&D or skew pharmacology screening. We get calls every month from clients dealing with failed scale-ups from less scrupulous sources, and we have learned to document everything that leaves our plant with clear analytic backup.

    Building Robust Synthesis Routes—From Kilo Lab to Full-scale Manufacturing

    Our plant teams start with raw materials we can control directly, rejecting any incoming chemistry that hints at off-odors, clumps, or odd colors. Our syntheses use high-quality hydrazine and thionyl chloride, under carefully controlled temperature and pH. Over the years, we’ve caught more than a few unexpected curveballs—vessel contamination, minor exotherms, batches lagging on endpoint. We record these in our plant logs, tweaking purification steps and recovery cycles. It’s about giving process chemists confidence that the same lot today will act the same tomorrow.

    We keep clean lines and a disciplined distillation protocol. The practical differences show up in yield stats and repeatability, not just cleaner paperwork. Even byproduct trapping and disposal matters—our experience tells us solvent residues linger, so each run gets strict evaporation and final drying, then a last pass through analytic before drums leave.

    What End Users Care About—Direct Feedback Translates to Better Chemistry

    We do more than write up bulletins. Every year, senior techs visit customer labs to help troubleshoot or swap notes about hard reactions. That’s where insights come in: the surface finish, the grind, how the powder disperses in organic or polar mediums—all of it matters when reaction windows close in, or when precision matters more than volume.

    In pharmaceutical settings, we see 1,2,3-thiadiazole-4-carboxylic acid form the backbone of kinase inhibitor studies, anti-inflammatory leads, and early exploratory analogs. Bench chemists share where our fine-tuned product saves them headaches: cleaner coupling, fewer isolation steps, consistent titer. In agriculture application labs, field chemists rely on reproducibility, avoiding those irreproducible fizzles that happen with spotty or moisture-laden material.

    We track purity drift lot by lot, revising method steps to reduce batch-to-batch differences. Sometimes it’s a simple case of running an extra drying cycle or a tighter sieve grade; other times, new chromatography detects traces unnoticed in past runs. Feedback from clients running hundreds of grams in process optimization makes us sharper for everyone.

    Safe Handling, Real Experience—Not Just Data on a Sheet

    No one gets complacent about safety. Bulk batches of thiadiazole carboxylic acids need methodical handling—a splash or grain in the wrong spot brings unnecessary risk. In our shop, routine starts with personal discipline and rigorous labeling. Plant veterans share knowledge with every new hire: where the exposure points lurk, which steps demand slow addition, where static can trigger real issues. After one incident years ago with pressure buildup in a poorly vented flask, we revamped entire venting sections and reinforced PPE policies.

    Temperature control and atmospheric management matter even more. Moisture content isn’t just a footnote; it has a direct impact on downstream product stability and shelf-life in hot climates or high humidity. Our actual numbers reflect this: we document each batch’s water content and store every unit under tightly managed conditions, not just in theory but directly on the plant floor.

    Supporting High-Level Science by Solving Real World Constraints

    On the laboratory side, whether it’s for NMR confirmation or chiral separation, clean starting points reduce wasted time. Our own sales and tech support staff keep up with trends through direct partnership with academic groups and industrial process teams. When a research chemist hits a wall with a reaction step, we actually run parallel checks where possible, giving evidence from our own control samples and old batch data. This connection makes our materials not just chemically sound, but truly useful in routine as well as exploratory science.

    In drug development and homologation runs, product timelines move fast. Inconsistent intermediate supply can wipe out months of work or throw off small-molecule libraries. Over time, teams have found our attention to impurity and storage details lets them tune their formulation instead of fighting raw material swings. The reliability we bring comes from ground-up process discipline more than any branding.

    For agricultural chemistry and new biocide R&D, the real test arrives in applied conditions—soil, spray, sunlight, or humidity. Feedback from these ends up back in our plant protocols: minor tweaks to remove metallic traces, or more robust packaging to withstand export routes. Chemists in these fields face ever-changing regulatory faces and unpredictable weather, so a constant in the form of a dependable intermediate makes innovation smoother.

    Troubleshooting: We Share Proven Solutions from Production

    Troubleshooting chemical problems can be a lonely battle, especially with complex molecules. Our history includes dozens of hands-on solutions for users stuck mid-stream—unexpected reaction stalls, separation nightmares, or solubility left out in supplier documentation. In each case, direct plant knowledge saves time. For instance, we’ve caught issues with batch-to-batch static charge buildup during September rainy seasons, flagged by a sharp-eyed technician who also happened to be an amateur meteorologist. Adjusting our antistatic process returned product stability and happier clients.

    We help teams modify isolation steps, sometimes advising on better solvent swaps or moving to nitrogen blankets for troublesome moisture spikes. In one industrial pilot, a client’s process repeatedly failed at crystallization—they were fighting invisible trace amines, something we caught during updated analytical runs. After tweaking our purification, their campaign passed all benchmarks, and they avoided another six months in rework.

    Long-term users log higher yields in scale-up and fewer off-target side products. All this comes from our principle: if a problem pops up, document, analyze, and feed it back, so both the plant floor and the customer lab improve together.

    Regulatory Support—Staying Ahead of the Compliance Curve

    Chemical regulation changes constantly. We don’t treat certificates as paperwork but as living proof that our batches match evolving expectations. We have direct relationships with many third-party analysis providers, often double-checking findings before anything ships to regulated markets. When specifications shift, we hold meetings on the ground and adapt plant records, retraining techs at short notice if needed.

    Confidence in compliance comes from hard-won habit, not just reading headlines. For international partners, every document we provide reflects a trail of careful analysis, witnessed samples, and periodic batch recalls to confirm on-file properties. In the lab, this means less time cross-referencing or worrying about gray-market irregularities that could set back entire projects.

    Why Run with Proven Suppliers? Experience Speaks Louder Than Brochures

    Many users have tried cutting corners, looking for cheaper options or switching intermediates. We see the fallout when early savings collapse under product recalls or failed tests. Stable operations rest on learning from every run and staying transparent with every order. In our case, ongoing dialogue with end users keeps process improvement grounded—what helps in one field can often transfer to another with only minor adjustments.

    1,2,3-thiadiazole-4-carboxylic acid may sound like just one entry on a reagent list. In practice, behind each batch stands years of tough lessons, hands-on skill, and shared accountability from a chemical manufacturing team that lives with the real results every day.