Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Isoxazole

    • Product Name Isoxazole
    • Alias 1,2-Oxazole
    • Einecs 207-070-3
    • 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
    VTB
    Specifications

    HS Code

    671115

    Iupac Name 1,2-oxazole
    Molecular Formula C3H3NO
    Molar Mass 69.06 g/mol
    Appearance Colorless liquid
    Melting Point -54 °C
    Boiling Point 95 °C
    Density 1.086 g/cm³
    Solubility In Water Slightly soluble
    Cas Number 288-14-2
    Structure Five-membered aromatic ring with oxygen and nitrogen at positions 1 and 2
    Smiles C1=CN=CO1
    Pubchem Cid 1046

    As an accredited Isoxazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 25g amber glass bottle labeled "Isoxazole," features a hazard symbol, chemical details, and manufacturer information, sealed for safety.
    Shipping Isoxazole is shipped in tightly sealed containers to prevent moisture and contamination, following all applicable regulatory guidelines. It should be transported under cool, dry conditions with clear labeling indicating its chemical nature and hazards. Proper documentation accompanies the shipment, ensuring compliance with local, national, and international shipping regulations for laboratory chemicals.
    Storage Isoxazole should be stored in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers. Keep the container tightly closed when not in use. Store at room temperature and protect from moisture and direct sunlight. Follow all relevant safety and regulatory guidelines to ensure safe storage and handling.
    Application of Isoxazole

    Applications of Isoxazole in Industrial Manufacturing

    Isoxazole acts as a critical building block for advanced materials and specialty chemical synthesis, supporting high-value downstream manufacturing for pharmaceuticals, agrochemicals, and specific polymer intermediates. Below, we detail the precise industrial application pathways and related compliance, usage, and process frameworks established by our direct collaboration with global formulators and processors.

    1. Active Pharmaceutical Ingredient (API) Synthesis

    Global pharmaceutical companies routinely incorporate isoxazole into their synthetic routes for manufacturing CNS drugs, antibiotics, and anti-inflammatory medicines. Our facility supplies isoxazole in compliance with strict regulatory requirements for intermediates, where it is introduced at key stages in heterocyclic API assembly. Controlled use and documentation ensure traceability and batch consistency throughout multi-step synthesis, meeting the demands of validated commercial drug pipelines.

    Industry compliance standards

    • ICH Q7 GMP guidelines for active pharmaceutical ingredient manufacturing
    • US FDA 21 CFR Part 211 for finished pharmaceuticals
    • Ph. Eur. (European Pharmacopoeia) standards for starting materials
    • Chinese Pharmacopoeia, as applicable to local API production

    Typical usage ratio

    • 0.5–1.5 molar equivalents relative to target heterocyclic framework; precise addition based on the desired substitution pattern and stepwise synthesis complexity

    Downstream process integration

    • Isoxazole is charged into mid- or late-stage reaction vessels, often under inert atmosphere, to enable ring formation or as a functional group precursor in condensation or cyclization reactions; isolation occurs before crystallization or purification steps.

    Final product types

    • Anticonvulsants (e.g., zonisamide)
    • Non-steroidal anti-inflammatory drugs (e.g., leflunomide)
    • CNS agents and intermediates containing the isoxazole nucleus
    • Broad-spectrum antibiotics (when isoxazole acts as a side-chain or scaffold unit)

    2. Agrochemical Intermediate Manufacturing

    Crop protection formulators use isoxazole as an essential intermediate for synthesizing herbicides and fungicides with selective bioactivity. The chemical enters proprietary reaction schemes to develop products that meet international pesticide regulations. Our controlled supply supports scalable production campaigns for both generic and branded agrochemicals targeting resistant weed and disease management challenges.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius for pesticide residue
    • ISO 9001:2015 for quality management throughout supply chain
    • REACH registration (EC No. 1907/2006) for chemical substances in Europe
    • EPA (US) 40 CFR Part 180—Tolerances and exemptions for pesticide chemical residues

    Typical usage ratio

    • 3–10% w/w in key intermediate step, adjusted based on functionalization target, reaction scale, and downstream optimization studies

    Downstream process integration

    • Introduced during controlled heterocycle formation, often via catalytic cyclization or acylation; intermediates purified by extraction and vacuum distillation prior to active ingredient synthesis

    Final product types

    • Sulfonylurea herbicides incorporating isoxazole motifs
    • Systemic fungicides with tailored ring-substitution profiles
    • Seed treatment actives where regulatory approval lists isoxazole derivatives
    • Custom pesticide intermediates for use in proprietary formulations

    3. Polymer Additives and Specialty Monomers

    Specialty polymer manufacturers utilize isoxazole as a monomeric building block to introduce nitrogen-oxygen heterocycles in engineered resins. This confers targeted thermal, flame-retardant, and electronic properties in select polymer systems, including advanced coatings, adhesives, and high-performance thermosets. Application-specific protocols ensure additive compatibility and regulatory acceptance for both export and domestic finished-goods compliance.

    Industry compliance standards

    • UL 94 for flame-retardant plastics
    • RoHS Directive 2011/65/EU for hazardous substances in electronics
    • ISO 14001:2015 for environmental management
    • REACH Annex XVII for restriction of hazardous substances in polymers

    Typical usage ratio

    • 0.1–1.5% by weight in copolymer blends, with precise dosing determined by monomer reactivity and end-use performance criteria

    Downstream process integration

    • Isoxazole derivatives are directly fed into bulk or solution polymerization reactors as co-monomers or chain modifiers, integrated in situ during polymer backbone formation

    Final product types

    • Flame-retardant polyimide or polyamide resins
    • Electronic encapsulants for circuit protection
    • Industrial adhesives with increased resistance to heat and solvents
    • Coating resins with enhanced UV and oxidative stability

    4. Analytical Reagents and Research Chemicals

    Analytical laboratories and chemical R&D centers employ isoxazole as a standard reagent or labeled compound for mechanistic studies and method validation. Our high-purity isoxazole enables reproducible outcomes in quantitative analysis, reaction mechanism elucidation, and compound tracing, supporting both regulatory and scientific research environments. Batch consistency is maintained through full-chain GMP documentation for sensitive analytical contexts.

    Industry compliance standards

    • ISO/IEC 17025 accreditation for laboratory testing and calibration
    • GMP for laboratory reagents affecting regulated pharmaceutical or biotech workflows
    • OECD GLP (Good Laboratory Practice) for research traceability
    • Relevant country-specific chemical laboratory usage and import regulations

    Typical usage ratio

    • Concentration varies: from 1 mg/mL standards in analytical protocols to 10–100 mmol quantities in lab-scale synthetic trials, determined by experimental design and detection limits

    Downstream process integration

    • We supply directly into analytical sample prep lines, GC/MS and LC/MS calibration, and as chemical feedstock in academic and industrial research synthesis cycles

    Final product types

    • Reference standards, purity benchmarks, and calibrators
    • Labeled compounds for metabolic fate studies
    • Synthetic analogs for mechanistic exploration
    • Protocol validation kits for regulated laboratory environments
    Free Quote

    Competitive Isoxazole prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

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    Certification & Compliance
    More Introduction

    Understanding Isoxazole: Application-Driven Purity and Performance from the source

    The product story: why Isoxazole matters

    In our years focused on heterocyclic chemistry, certain building blocks have stood out—not just for their structures, but for how chemists keep coming back to them in the search for efficiency, safety, and value. Isoxazole is one of those rare foundations. In our plants, the production line rarely slows for it, which says a lot. Isoxazole brings a five-membered ring with both nitrogen and oxygen built in. These aren’t just academic talking points; these elements make a difference in real-world reactivity and stability. In those day-to-day runs, operators and analysts see what practical controls make: selective purifying, water content down to fractions of a percent, and crude product that has to meet stability standards for actual shipment, not just an internal spec.

    Our typical batches weigh in between 25 kg and 150 kg, with options for 98% or higher purity depending on what you’re demanding downstream. Nearly every synthesis step is monitored in-house—no subcontracting out crucial distillation or drying work. Experienced hands manage parameters like reflux temperature, pressure, and the endpoint until the target specifications are reached. We don’t cut corners to move shipments faster, because trace contamination, especially on this ring system, isn’t just a number on a spreadsheet. Uncontrolled impurities can lead to by-products that force you to repeat steps or even start again, wasting man-hours and raw materials.

    Direct chemistry, not empty promises

    You’re buying actual isoxazole—not a blend, not a mix with stabilizers, not solvent-wet unless specifically requested. We send out raw material that’s tailored for pharmaceutical or agrochemical syntheses, and you get full documentation—tracked back to the actual batch, lot, and shift. Each shipment goes with a recorded GC/HPLC profile and a detailed water and ash analysis. Having direct control over every production variable supports the claims we make. This isn’t hype; decades of customer feedback and our own follow-up tests have made one thing clear: small changes in trace residue or water activity alter end product yields dramatically. Cutting that out at the source matters more than sending out sample vials with long-winded spec sheets.

    In practice, isoxazole’s value shines where reliability meets reactivity. Medicinal chemists find its ring delivers valuable bioisosterism, fitting tight SAR requirements without slipping into undesired metabolism. Crop and protection chemists focus on activation and coupling sites, pointing out the difference a clean feedstock offers. Through direct-run experience, we’ve seen many chemists eliminate purification steps or reduce column passes because every impurity peak is actually reduced rather than just offset by a fancy additive.

    Practical application: feedback from real industries

    We have long-standing supply relationships with both high-volume agrochemical companies and medicinal startups doing early-stage compound screening. They rarely ask for improvements in appearance or packaging but focus constantly on supply consistency and compliance. Every year, independent testing and our repeat analyses after shipping have reinforced that fully controlled moisture, low halogen content, and precision in distillation translate to tangible benefits: shorter timelines, fewer reprocessing runs, and higher R&D efficiency.

    Isoxazole stands as a reliable partner in oxadiazole, isoxazoline, and related syntheses. From exploratory reaction development to pilot-scale validation, the repeatability starts here—not in a sales brochure or a pitch deck but on the operating floor. Our process chemists often get calls about optimizing rings or keeping by-products in check, and their answers draw on hundreds of kilo-scale reactions, not just theory from reaction databases.

    Handling isoxazole also means meeting local and international shipping safety. Our production teams keep a close eye on containment, temperature, and regulatory documentation. Chemists from several regulatory zones have reported that our closed transfer and packaging protocols are both robust and audit-ready, so fewer procedural gaps surface during international transfer, whether by road, sea, or air.

    Form, fit, and feel: everyday realities

    Throughout our years in this field, the most frequent feedback isn’t about “innovative features” or “breakthroughs;” it comes down to whether the product works every single time, exactly as it should. Isoxazole leaves our site as a crystalline or high-purity liquid depending on storage temperature and customer requirement. The difference might appear academic, but the handling properties shift: solid forms allow for easier weighing and temperature control, while the liquid state is favored in continuous-feed reactors.

    We maintain a simple chain of custody, logging every batch and shipment in our own plant records, not farmed out to third parties. That’s the insurance that makes a difference if questions come up a year after purchase. Reaction scouts working in pharma or materials labs have reported fewer handling incidents and easier cleaning with our material, especially compared to product that’s spent too long in storage or undergone too many repackagings.

    Customers bringing their own QA teams routinely send questions on melting point, DSC/TGA profiles, and shelf life stability. Our in-house team answers from real data, often sharing snapshots from batch records or last-stage purification logs, not just a summary spec. That transparency is a product of running our own operation—not reselling from an unknown chain.

    Differences from competitors and alternative approaches

    There’s no shortage of isoxazole listings worldwide, and as manufacturers, we see more and more third-party brokers pop up every season. Our focus isn’t volume for its own sake; it’s on end-to-end control of the process and feedback loop. Many suppliers source from multiple upstream plants, which can leave buyers with variable side-product loads, unexpected trace metals, or even unstable forms.

    We’ve talked to chemists frustrated by purchasing “comparable” isoxazole at a discount, only to see chromatography become a tedious exercise or product shelf life drop months short of stated figures. This isn’t a sales pitch; the research departments that tie their success to well-documented feedstocks are the same ones reporting higher project success rates and smoother regulatory approvals. As the original manufacturer, every product batch links back directly to our plant’s in-house runs and records. We don’t rely on purchased intermediates or repackaged product; each lot is tracked from start to finish, with every purification and check logged in a chain that’s open to our customers’ technical teams by request.

    The difference surfaces most clearly in high-throughput or scale-up work. Repeat customers have shared data showing up to 15% improvement in overall product yields with our material, purely from reduced need for in-lab post-purification. These are concrete differences, measurable by any chemist running parallel syntheses.

    Solving real production challenges: advice from experience

    A major headache for process chemists working with isoxazole is sensitivity to moisture and temperature swings. Off-the-shelf products stored at uncontrolled temperatures often arrive with decomposed material or unexpected water load, which means unpredictable reactivity, sticky residues, or even batch failure. To solve this, we built dedicated temperature and humidity-controlled storage zones in our facility and invested in rapid-cooling logistics. Deliveries come packed with proper desiccants and segregated for speed, minimizing lag between packing and user handoff.

    Supply interruptions and inconsistent documentation create more problems than raw material price ever does. We address this head-on by giving buyers access to the actual batch details, not “representative” data. So if your synthesis protocol notes a blip in conversion or needs a breakdown on nonvolatile residue, you get logs traced directly to the day’s run. These are not empty reassurances, but a practice built on decades of requests and audits by chemical buyers who know the headaches that real inconsistency brings.

    Shipping cross-border can create compliance complications, especially as regulations evolve. By maintaining control all the way down the logistics chain, we can preempt most routine paperwork issues and resolve them before the product ever leaves the dock.

    The regulatory view: documentation grounded in practice

    Regulatory standards, both in pharma and crop science, get stricter every year. We keep a running archive of every production and analytic step done on each batch, ready for audit or product registration. A common pain point for buyers is delayed submissions caused by missing or incomplete raw material documentation. With full transparency, you receive a robust file alongside each delivery, covering traceability, impurity spectra, moisture, and stability. Project managers aiming for ISO or cGMP compliance have repeatedly cleared raw material audits using our documentation as their base, saving time and money.

    We’ve worked with teams preparing DMF submissions, patent filings, and regulatory dossiers. The difference between passing on the first attempt or getting flagged for re-review usually comes down to paperwork organization and data integrity built from the ground up. Our plant management systems tie every analytical finding, condition change, and purification record to unique product lots, allowing for streamlined, transparent reporting.

    Environmental responsibility also comes into play. We support full product stewardship reporting, including information on safe handling, waste minimization, and lifecycle impacts—central pieces for large-scale buyers with their own sustainability goals. Everything we know about safe use is based on what our own teams follow every shift, not on theoretical or generalized safety data.

    Usage in R&D, scale-up, and production

    Isoxazole’s versatility attracts both discovery chemists and scale-up teams. In the lab, its ring system shows strong performance in diverse transformations, offering a scaffold for synthesis of heterocycles, APIs, and protected intermediates. It plays a reliable role in condensation reactions, as a masked acyl substituent, or in cyclization schemes that demand predictable reactivity without excessive side-product formation.

    In production environments, scale brings out new challenges—batch-to-batch uniformity, side reaction suppression, and safe bulk transfer. With every 100 kg delivery, buyers see trace impurity figures and shelf life stability as recurring talking points. Real-world data from our own logistics teams inform the packaging—moisture-sealed drums, tamper-proof seals—measures that aren’t about adding cost, but about making switchover predictable and safe for every operator on the receiving end.

    Customers have used our product directly in the preparation of anti-infective compounds, CNS drug screening leads, advanced N-oxide intermediates, and more. They benefit from reproducible outcomes, fewer batch losses, and less troubleshooting when tracking unknown peaks during process optimization. The experience gained from hundreds of intermediate and final product campaigns feeds back into small process adjustments every season. That builds a cycle where each batch’s analytical data informs the quality of the next run.

    Sustainability and the manufacturing outlook

    Honestly, sustainability isn’t just a slogan in our operation. Installations supporting isoxazole synthesis recover solvent, cut down on waste, and deploy in-line analytics to spot off-spec streams as soon as they emerge. Process water and energy use come under annual review, with actual reduction targets reported—not just compliance for its own sake. Our customers in regulated industries have growing expectations on green chemistry and waste minimization. They’re pushing us, and we’re responding with smarter layouts, continuous improvement teams, and a commitment to roots-in-facts reporting, not shiny marketing.

    We’re upfront about the actual origins of every raw material, and traceability audits stretch from our plant gate all the way back to upstream input suppliers. In this way, chemical buyers can verify sustainability claims with real evidence. Continuous work in minimizing ecological impact means balancing real trade-offs—optimizing process yields, reducing emissions, and closing internal material loops.

    That brand of transparency keeps us accountable not just to customers, but to our own operational standards. No sleight of hand, no vague promises—just proof of process, logged day-in and day-out.

    What differentiates our approach, in practice

    After years in the chemical manufacturing business, the most valuable asset isn’t extensive product catalogues or low headline prices—it’s reliability, based in direct control. By producing, testing, and shipping directly from our plant, we reduce slips, errors, and uncertainties that create headaches for end users. Old customers return because they experienced fewer product complaints, faster troubleshooting, and real peace of mind when moving to larger scales.

    We recognize the pressure on buyers to get up-to-date, fully traceable supply. Our approach allows direct answers to any issue that arises, every time. That doesn’t happen by luck; it comes from continuous process improvements, hands-on technical oversight, and a culture of feedback and responsiveness that connects plant floor to chemists in the field.

    For us, Isoxazole represents more than just a molecular scaffold; it’s a proving ground for manufacturing that values consistency, documentation, and real chemical understanding. Our reputation follows every drum, carton, or flask that leaves the site, backed by people who know what it means to deliver quality, year after year.

    We invite chemists and buyers alike to put our process, and our Isoxazole, to the test—not on trust, but on the evidence and experience that come from a true manufacturing source.