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6-Nitro-Benzooxazole-2-Thiol

    • Product Name 6-Nitro-Benzooxazole-2-Thiol
    • Alias 6-nitro-2-mercaptobenzoxazole
    • Einecs 841-372-3
    • 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
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    Specifications

    HS Code

    711232

    Chemical Name 6-Nitro-Benzooxazole-2-Thiol
    Molecular Formula C7H4N2O3S
    Molecular Weight 196.18 g/mol
    Cas Number 23119-94-6
    Appearance Yellow to orange powder
    Melting Point 205-209°C
    Solubility Slightly soluble in water, soluble in organic solvents
    Purity Typically ≥98%
    Storage Conditions Store in a cool, dry place, away from light
    Smiles C1=CC2=NC(=S)OC2=C1[N+](=O)[O-]
    Pubchem Cid 180308
    Synonyms 6-Nitro-2-mercaptobenzoxazole
    Hazard Statements May cause skin and eye irritation

    As an accredited 6-Nitro-Benzooxazole-2-Thiol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 25 grams of 6-Nitro-Benzooxazole-2-Thiol, tightly sealed with a screw cap and safety label.
    Shipping 6-Nitro-Benzooxazole-2-Thiol is shipped in tightly sealed containers, protected from light and moisture. It is handled as a potentially hazardous chemical, following standard chemical shipping regulations, including labeling and documentation. Shipments comply with national and international transport guidelines for laboratory chemicals, ensuring safe delivery to authorized recipients.
    Storage 6-Nitro-Benzooxazole-2-Thiol should be stored in a cool, dry, and well-ventilated area, tightly sealed in its original container. Keep away from sources of ignition, moisture, and incompatible substances such as strong oxidizers. Minimize exposure to light and air to prevent degradation. Proper chemical storage protocols and safety labeling must be followed at all times.
    Application of 6-Nitro-Benzooxazole-2-Thiol

    Applications of 6-Nitro-Benzooxazole-2-Thiol in Industrial Manufacturing

    6-Nitro-Benzooxazole-2-Thiol serves as a specialized intermediate across several advanced chemical industries. We supply this compound to manufacturers who need consistent quality, regulatory compliance, and customized support for challenging downstream processes. Below we outline verified industrial applications based on real-world customer integrations and regulatory demands.

    1. Pharmaceutical Intermediate for Antimicrobial Agents

    Major pharmaceutical manufacturers incorporate this material in the multi-step production of specific antimicrobial APIs, such as benzooxazole derivatives. During synthesis, 6-Nitro-Benzooxazole-2-Thiol reacts with halogenated aromatic compounds under controlled pH and temperature profiles to introduce a sulfur-containing moiety essential for bioactivity. The downstream process involves purification by recrystallization and chromatographic separation to meet ICH impurity standards. Our material supports validated routes with proven impurity control and batch reproducibility, suited for patented as well as generic drug projects.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • European Pharmacopoeia Monograph 2.4.14 (impurity profiling)
    • FDA 21 CFR Part 211 (Finished Pharmaceuticals GMP)
    • REACH Annex XVII (substance restrictions for pharma use)

    Typical usage ratio

    • 0.5–2.0 molar equivalents relative to core aromatic substrate
    • Optimized during early process development based on coupling efficiency

    Downstream process integration

    • Added after base-mediated halogen exchange in the heterocycle ring assembly
    • In-line filtration and aqueous work-up precede API crystallization

    Final product types

    • Active pharmaceutical ingredients (APIs) with benzooxazole scaffold
    • Bulk antimicrobial drug substances
    • Therapeutic oral solid dosage forms
    • Injectable antimicrobial formulations (post-GMP processing)

    2. Precursor for Luminescent Material Synthesis in OLED Manufacturing

    OLED display manufacturers use this compound as a precursor for producing high-efficiency luminescent dyes, enabling strong electron-donating properties. Material enters the process at the dye synthesis stage, where it reacts via Pd-catalyzed cross-coupling with aryl bromides to introduce nitro-functionalized oxazole units. The downstream fluorescent dye blend must achieve both high quantum yield and photostability, driving precise stoichiometry and solvent control. Final OLED layers deliver improved blue-green emission in premium display panels.

    Industry compliance standards

    • IEC 61293:2013 (Marking of electrical products with environmental aspects)
    • RoHS 2011/65/EU (Restriction of hazardous substances in electronics)
    • ISO 9001:2015 certified plant protocols
    • EN 50581 (Technical documentation for RoHS)

    Typical usage ratio

    • 0.1–0.3 wt% in luminescent dye precursor mixtures
    • Concentration adjusted for target emission wavelength and layer thickness

    Downstream process integration

    • Direct addition to dye synthesis reactor after base treatment and halide activation
    • Integrated purification by LC-MS-guided fractionation

    Final product types

    • OLED emissive layers for mobile device displays
    • Flat-panel television pixel elements
    • Printable organic photonic films
    • Solid-state lighting dye intermediates

    3. Custom Monomer Precursor in High-Performance Polymer Additives

    Specialty polymer producers employ this compound in the synthesis of sulfur/nitro-functionalized monomers for heat-resistant engineering plastics. The manufacturing process involves nucleophilic substitution onto multifunctional acrylate or methacrylate backbones, yielding monomers with enhanced thermal and oxidative stability. The precise molar ratio controls polymer chain length and cross-linking density—paramount for downstream extrusion or injection molding. Material purity and consistent sulfur content markedly improve end-use polymer mechanical properties.

    Industry compliance standards

    • ISO 14001 (Environmental Management Systems)
    • REACH Title IV (Registration and evaluation for monomer supply)
    • ASTM D5630 (Residue on Ignition for plastics)
    • UL 94 (Flammability testing for polymeric materials)

    Typical usage ratio

    • 5–10 mol% of total monomer charge for copolymer blends
    • Adjusted based on desired softening point and flame retardancy

    Downstream process integration

    • Charged into high-shear polymerization reactor at monomer make-up stage
    • Post-polymerization neutralization with aqueous base

    Final product types

    • Heat-resistant specialty resins for aerospace
    • Antistatic additive masterbatches
    • High-performance polyacrylates for electronics casings
    • Flame-retardant composite materials

    4. Intermediate in Agrochemical Synthesis for Fungicidal Products

    Agrochemical formulators utilize this thiol for synthesizing heterocyclic thiol-based fungicides. It enters the multi-stage synthesis following halogenation and esterification, directly introducing a nitrothiol moiety crucial for final biological activity. The crude reaction mixture undergoes acid wash and continuous extraction to meet ISO residue standards before blending into technical concentrate. Maintaining control over the thiol’s addition minimizes by-product formation and ensures downstream batch-to-batch bioactivity and regulatory compliance for field applications.

    Industry compliance standards

    • ISO 9001:2015 (Quality management for agrochemical processing)
    • FAO/WHO Specification 276/TC
    • EPA 40 CFR Part 180 (Tolerances for residues of fungicides)
    • REACH Annex IX (Dossier data for plant protection intermediates)

    Typical usage ratio

    • 0.8–1.5 equivalents per precursor molecule in fungicide synthesis
    • Adjusted for desired purity in technical grade concentrate

    Downstream process integration

    • Introduced during heterocycle ring-forming condensation
    • Filtration and pH adjustment precede formulation blending

    Final product types

    • Technical concentrate of thiol heterocyclic fungicide
    • Granular field application formulations
    • EC (emulsifiable concentrate) spray products
    • Seed coating fungicidal agents

    5. Building Block for Analytical Reagents in Environmental Testing

    Producers of chemical analytical reagents apply this compound in synthesizing chromogenic agents for detection kits. Its strong electron-withdrawing nitro group supports rapid colorimetric response to sulfur-containing analytes in water and soil. The compound enters the process as a coupling partner in diazotization or thiol-derivatization reactions. Rigorously controlled handling and purification steps eliminate trace by-products potentially interfering with analytical accuracy. Final product stability aligns with extended shelf-life and global QA release protocols.

    Industry compliance standards

    • ISO 17025 (Testing/calibration lab competence)
    • EPA SW-846 Methods (Analytical Quality Control)
    • EN 1484 (Water analysis; organic carbon measurement)
    • RoHS (for reagent kits supplied internationally)

    Typical usage ratio

    • 0.05–0.2 wt% in chromogenic reagent blend
    • Adjusted to analytical sensitivity and target detection limit

    Downstream process integration

    • Ellman's-type reaction or diazotization for colorimetric reagent prep
    • Final blending with buffer and stabilizers before vial filling

    Final product types

    • Chromogenic water quality test kits
    • Portable soil sulfur detection reagent
    • Photometric calibration solutions
    • Custom laboratory reagent standards
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    Certification & Compliance
    More Introduction

    6-Nitro-Benzooxazole-2-Thiol: A Closer Look at Our In-House Synthesis

    Introduction to 6-Nitro-Benzooxazole-2-Thiol

    We have spent years refining the manufacture of 6-Nitro-Benzooxazole-2-Thiol, a compound that has made its way into challenging corners of research and industry. In our facility, we take the time to adjust and control each batch, relying on data gathered from our own reactors and quality systems. The main structure of this molecule carries a nitro group at position six and a mercapto group at position two of the benzooxazole ring. Together, these features set this compound apart in the families of heterocyclic chemical intermediates. The product leaves our plant typically as a finely powdered solid, pale to deep-yellow, with purity by HPLC crossing the 98% mark. Every specification tells a part of the story, but the real value appears when you see how different industries lean on this building block.

    Manufacturing: Our Approach from Raw Material to Product

    We begin each batch by qualifying raw materials for purity since minor contamination can compromise downstream reactions. The nitration step delivers precision in the introduction of the nitro group, and the mercaptan substitution demands a tight control on time, temperature, and pressure. We have learned not to take shortcuts on solvent recovery, since recycled solvents keep our cost structure in check and lower the environmental footprint. Our reaction pots rarely misbehave, but we still trust only data from our own QA lab rather than chasing ideal numbers from generic specifications. Batch consistency comes from careful filtration, not aggressive speed. We built our own drying system to prevent local heat spots, so product stability stays within limits set by our own research.

    Understanding Specifications through Continuous Experience

    Purity alone doesn’t tell the whole story for a molecule like this. We keep a close eye on melting point, particle size distribution, appearance, residual solvents, and trace metal content. Over the years, some applications have nudged us to tweak particle size, so we offer options after granulation or micronization. Trace analysis using our own mass spectrometry equipment helps us catch any shadow impurities. We do not rely on blanket certificates; every batch gets its own real numbers. Handling the compound calls for care, as it is sensitive to light and moisture over long storage. Stability studies over years have taught us what truly influences shelf life, so our storage environment runs at controlled temperature and humidity. We have received feedback from research labs that this attention to micro-detail prevents headaches in their own syntheses.

    Real Uses for 6-Nitro-Benzooxazole-2-Thiol

    Much of our sales volume goes to labs developing new pharmaceutical intermediates. The unique dual reactivity of the molecule’s nitro and thiol groups opens two windows for further transformation or cross-coupling. Some customers push its use into specialty dyes and imaging agents. In those sectors, the product’s reactivity must be predictable, and reproducibility matters more than theoretical yields. Others in the field of material science see it as a monomer or modifier in polymer synthesis, counting on the oxazole ring to change thermal or optical properties. Our factory has seen patterns: research groups value the clean handling and reliable assay, while industrial processors running scale-ups appreciate the batch-to-batch consistency.

    How We Keep Quality True to What End Users Need

    The reason we maintain a broad set of specifications emerges from feedback by bench chemists and process engineers. Standard purity can’t always fix issues when impurity profiles drift between batches. Early on, users pointed out that our standard grind did not dissolve rapidly enough for some synthesis steps. We responded by upgrading our milling system and offering custom particle sizes. Other customers reported sensitivity to residual toluene, so we changed our workup protocol and improved solvent stripping steps. Process chemists in drug discovery value this attention, since consistent results matter when patent timelines and filing schedules are tight. Our technical team works directly with partner labs, not through intermediaries, so we hear about challenges before they become large-scale quality problems.

    What Sets 6-Nitro-Benzooxazole-2-Thiol Apart from Close Relatives

    We run side-by-side bench trials using similar compounds – benzooxazole rings without the nitro group or with other substituents – but few show the same reaction scope. The nitro group acts as an electronic attractor, increasing the range of nucleophilic substitutions possible. Customers who have attempted to swap in more common mercapto-benzoxazoles report lower yields or require harsher conditions. We have also seen that electron-deficient rings like this nitro version undergo selective transformations that other analogues cannot manage. Subtle differences in reactivity become pronounced when moving from small scale to process batches. For example, methyl or chloro analogues lack the necessary activation for thiol-based linkages, making ours the preferred choice for certain coupling routes.

    Supporting Researchers and Process Chemists by Sharing Real Experience

    Several times a year, we host site visits where research chemists watch us weigh out and process this compound in real time. Most guests express surprise at our controls on atmospheric moisture–not a point often highlighted in basic product fact sheets. In one case, a medicinal chemistry project struggled with unexplained side reactions until our QC team uncovered a trace byproduct; now, that customer requests only batches with specific impurity thresholds. In-house, we maintain a detailed log of all queries received about the product, and this experience pool shapes the next improvements. We also take part in user forums and collaborative projects aimed at open data sharing, hoping to move the industry toward more rigorous, transparent quality standards.

    Our Path to Greener Synthesis Routes

    It became clear over the past five years that green chemistry goals affect both regulations and customer expectations. Our team evaluated the synthesis pathway, looking for ways to minimize waste, reduce high-boiling solvent use, and recycle spent reagents. Traditional nitrations used to generate more acidic effluent; with process changes and more precise dosing, we have cut this by more than half. In parallel, our move to closed reactors cut raw material losses and improved operational safety. We discovered that lower reaction temperatures, combined with optimized kinetics, gave us nearly the same yield, so process energy use dropped. Every improvement came only after months of trial, but now both our carbon output and costs are lower. Feedback from several multinational research partners shows that environmental credentials are beginning to count when choosing a supplier.

    Challenges and Solutions in Shipping and Storage

    Shipping sensitive compounds brings its own lessons. We learned the hard way that standard drums sometimes let in too much moisture; we moved to double-sealed, lined containers, and humidity spikes are now rare. In transit through hot regions, a product’s appearance can shift, so we add thermal logging tags for longer routes. Our storage building operates under continuous environmental monitoring–no more guessing about seasonal variation. Several customers prefer smaller package sizes to keep the product from aging on their shelves, so we offer unitized packing with nitrogen flush for the most sensitive applications. This mix of practical adjustments came only from direct use cases, not theoretical best practice.

    Managing Risk: Worker Safety, Waste, and Residual Impact

    Few discussions on chemical synthesis remain practical unless worker health and safety come up early. We enforce personal protection standards; every operator gets hands-on training specific to this molecule, since the mercapto group presents a stronger odor and potential sensitizing risk. In our waste management area, we treat effluent in multiple steps, using activated carbon and neutralization. For local air, we run continuous VOC monitoring and install negative-pressure hoods at every open step to protect both workers and the surrounding area. Waste loads have dropped due to reaction optimization, but residual risk never vanishes, so we keep systems redundant as a policy. Auditors from external labs have walked through our site, and their recommendations often evolve our safety protocols further.

    The Trust Factor: What Industry Partners Tell Us

    Academic and industrial partners share valuable in-use data. After launching our improved protocol, customers noticed tighter reproducibility and improved synthetic outcomes in advanced medicinal chemistry. Several long-term clients send us both negative and positive performance reports. We log each one, and changes in impurity profiles or new application notes often trace back to these user contributions. Over time, this collaborative approach breeds reliable outcomes that can’t be achieved with generic commodity supply. Partners are clear about what works and what slows them down, and our business model depends on answering these practical questions rather than assuming each batch “should work as usual.” If problems ever arise, our staff respond by pulling reference samples and analyzing real batch records–this direct troubleshooting prevents speculative fixes.

    Our Take on the Future of 6-Nitro-Benzooxazole-2-Thiol in Industry

    In the next phase, we see more attention moving to digital tracking for each product lot, providing customers with a detailed lifecycle history. As regulations tighten, traceability and digital access to batch data set certain suppliers ahead. We continue investing in automated data capture, and now partners can access real-time assay records through secure portals. Soon, condition monitoring and AI-based trend prediction will flag potential quality shifts before final QC. We want to evolve with both customer requirements and the changing regulatory landscape, so we keep lines open around data, traceability, and transparency.

    Why Small Details Matter for the Compound's Real-World Value

    Feedback tells us that small changes in impurity loads or reactivity profiles slow down more research than anything else. The true test arrives not in the polished marketing brochure, but in the results from the next stage of synthesis. Process chemists running larger lots come back for batches that behave as expected every time. Researchers moving fast on medicinal leads want to know batch specifics, not just baseline purity. Our willingness to work through these scenario-by-scenario tweaks, shipping samples, adjusting protocols, and maintaining ongoing technical dialogue is what our partners rely on.

    Key Differences from Generic Products

    Many plants produce benzooxazole-2-thiol derivatives, but only a few commit to strict quality and reactivity standards. The difference comes through in how the nitro group tunes electron density and opens unique reaction channels. We have tested competitors’ material; variations in residual solvent or graying at ambient humidity often trip up downstream reactions. Users working with sensitive pharmaceutical or dye applications see failures with off-spec batches. Our approach, from fine filtration through custom drying cycles to single-batch testing, sets a product standard that avoids these traps. The industry increasingly looks for this type of product discipline, especially where consistency affects both cost and cycle time.

    Final Thoughts from Our Manufacturing Team

    The production and supply of 6-Nitro-Benzooxazole-2-Thiol is a hands-on process shaped as much by direct experience as by specification. Our operators and chemists have spent years handling this compound, iterating procedures, listening to what works on the ground, and passing those observations forward. Information exchange across the supply chain keeps us alert to the finer points defining value for R&D, manufacturing, and regulatory teams alike. This compound may appear simple on a formula sheet, but its performance owes much to how closely each process step follows practical, field-informed logic. Industry partners count on this assurance every time they place an order, and we take that responsibility seriously, batch after batch.