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HS Code |
722171 |
| Chemical Name | Benzothiazole |
| Molecular Formula | C7H5NS |
| Molar Mass | 135.19 g/mol |
| Cas Number | 95-16-9 |
| Appearance | Colorless to pale yellow liquid or crystals |
| Melting Point | 1-2°C |
| Boiling Point | 227°C |
| Density | 1.24 g/cm3 |
| Solubility In Water | Slightly soluble |
| Odor | Pleasant aromatic odor |
| Flash Point | 104°C |
| Vapor Pressure | 0.09 mmHg (25°C) |
| Refractive Index | 1.654 |
| Logp Octanol Water | 2.01 |
| Pka | Approximately 4.7 |
As an accredited Benzothiazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Benzothiazole, 500g: Packaged in a tightly sealed amber glass bottle with hazard labeling, shipped in protective cardboard carton. |
| Shipping | Benzothiazole is shipped in tightly sealed containers, typically drums or bottles, clearly labeled according to regulatory standards. As a flammable and potentially harmful chemical, it requires storage in a cool, well-ventilated area away from ignition sources. Transport must comply with local, national, and international hazardous materials regulations. |
| Storage | Benzothiazole should be stored in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible substances such as strong oxidizers. Keep the container tightly closed when not in use. Store in a designated chemical storage cabinet, clearly labeled, to prevent accidental mixing. Follow relevant safety regulations, and avoid temperatures above room temperature to minimize degradation and hazardous vapors. |
Applications of Benzothiazole in Industrial ManufacturingBenzothiazole underpins several advanced manufacturing sectors due to its unique chemical profile. Our production supports strict quality and traceability demanded by regulated global industries. Below, explore verified downstream uses and integration models. 1. Rubber Vulcanization AcceleratorsBenzothiazole forms a core intermediate for the synthesis of 2-mercaptobenzothiazole (MBT) and related sulfenamide accelerators, essential in rubber vulcanization. Our material enters rubber compounding plants where high-performance tires, conveyor belts, hoses, and molded goods require controlled cure rates, tack retention, and mechanical enhancement. Uniformity in purity and moisture is vital to minimize pre-vulcanization and avoid scorching. Technical formulation teams adjust accelerator systems based on elastomer type, final mechanical properties, and processing windows to maximize throughput and quality consistency in demanding automotive and industrial applications. Industry compliance standards
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2. Corrosion Inhibitors for Water TreatmentBenzothiazole derivatives play a key role as intermediates in corrosion inhibitor synthesis for cooling water and closed-loop HVAC systems. Formulators derive benzothiazole-based azoles that chelate transition metals, providing thin-film protection on ferrous and non-ferrous surfaces. Industrial operators require compliance with effluent standards and water discharge restrictions, further dictating the purity and absence of regulated by-products. Our traceability and batch certification support direct qualification in OEM and utility customer audits, supporting system longevity and asset integrity. Industry compliance standards
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3. Dye and Pigment IntermediatesThis material serves as a critical building block for select thiazole-based dyes used in textiles, paper, and plastics. Synthesis routes utilize benzothiazole cores, introducing substituents to tailor chromatic and fastness properties for professional dyehouses. Downstream processes stress strict purity and batch consistency to meet color reproducibility and toxicological standards. Our low-metal-spec material supports high-purity dye intermediate reactions, facilitating effective coupling and sulfonation to achieve bright shades and wash-resistant textile finishes. Industry compliance standards
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4. Chemical Intermediate for Agrochemical SynthesisFine chemical plants employ benzothiazole as a starting material for active ingredient development in select pesticide classes. The heterocyclic core enables further substitution to create fungicides and crop protection agents with specific spectrum and persistence properties. As compliance demands on pesticide residues and eco-toxicity rise, manufacturers rely on our controlled synthesis routes and impurity control to support regulatory admissions. Our supply documentation fits traceability and change management required for pre-market agrochemical registration worldwide. Industry compliance standards
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5. Synthesis of Photoinitiators for UV-Curable CoatingsBenzothiazole derivatives operate as precursors for thioxanthone-type photoinitiators widely used in UV-curable inks, coatings, and adhesives. Our production controls by-product and trace metal levels critical for photoinitiator synthesis. Coating formulators integrate downstream materials, requiring consistent initiation rates and low yellowing for high-end electronics and graphic art finishes. The chemical enters designated reactor steps enabling tailored substitution, before formulation into finished liquid systems at blending and dispersion plants. Industry compliance standards
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Working in chemical manufacturing, certain compounds come up time and time again because of their unmistakable versatility. Benzothiazole stands out as one of those backbone molecules in industrial chemistry. Our teams handle each step—from the preparation of raw materials to careful batch processing—so we see firsthand how this compound takes shape, what distinguishes its purity levels, and how the end product supports both established and emerging applications.
Benzothiazole does not appear by chance; it results from planned synthesis involving meticulous temperature control, pressure management, and tight quality checks. My experience in production lines reminds me daily how consistent process monitoring affects the outcome. Even slight variations—like water content, impurities, or handling conditions—can show up later in product quality or downstream performance for our industrial clients.
Our facility operates with the aim to produce benzothiazole that meets stringent industry standards. We typically aim for high assay content—above 98%—since customers in the rubber and specialty chemical sectors request this range for sensitive synthesis. Visual inspection tells only part of the story; clarity, absence of sediment, and color consistency are visible markers, while our lab results dig deeper to confirm the composition upholds the right structure and functionality. Trace impurities, if left unchecked, could impair batch stability, so we never skip a checkpoint in testing.
Solid benzothiazole offers a slightly yellow to beige color once crystallized. The odorous notes it gives off are sharp and pungent, making containment and ventilation a matter of routine. In liquid form, benzothiazole’s volatility seems like an inconvenience but assures us the product fits certain in-demand reactions, especially those where the compound serves as a precursor or intermediate.
Benzothiazole often enters the scene through rubber compounding. Factories producing tires rely on it to lengthen the life of rubber by boosting resistance to heat and stress. Our customers in the textile sector use benzothiazole-based agents to formulate durable finishes on fabrics, while those in water treatment harness its biocidal properties to combat microbial growth in closed-loop systems.
Each bottle or drum shipped leaves us well-aware that a seemingly simple organic molecule can drive huge industrial gains. Whether a client seeks higher durability in belts and hoses or more cost-effective corrosion protection in cooling towers, benzothiazole usually finds its place as an invisible contributor. By producing it in a range of purities and, at times, custom blends with specific inhibitors, we ensure engineers and researchers get solutions that work in real-life operating conditions—not just on paper.
Production teams spend countless hours troubleshooting and improving processing parameters. Take, for example, the water content in a batch; just a half-percent out of specification can reduce the shelf life of rubber accelerators made from it, triggering spoilage and costly shutdowns for customers. We answer these challenges not only by stricter drying and distillation, but by reinvesting in precision equipment for both measurement and automation. This is not corporate jargon—these investments directly cut waste and help plant engineers hit their efficiency targets, which shows up in better downstream yields.
Another detail that often gets less attention is the packaging. We stick to high-quality drums with heat-sealed liners to block atmospheric moisture. Volatility and odor control remain crucial. Customers who store our material in bulk have told us that this forethought saves them time on cleanup and reduces the demand for odor elimination systems.
I have seen buyers focus on price alone, only to find out later that a lower-purity product throws off their batch results or leaves stubborn residues on production equipment. By maintaining tight purity parameters, the difference often shows up downstream in the reliability of the client’s final product, whether that’s the tensile strength of a tire or the long-term protection of a metal in a harsh environment. Some users build extra checks into their process just to compensate for wide purity fluctuations from less-consistent sources—an expense that can disappear just by choosing a quality-focused supplier.
Customers sometimes ask how benzothiazole distinguishes itself from similar heterocyclic compounds, such as benzoxazole or thiazole. Here, the differentiation comes down to functional group chemistry and the resulting industrial uses. Benzoxazole features an oxygen atom instead of sulfur, giving it different chemical stability and reactivity. In practical terms, benzoxazole rarely survives the harsher conditions seen in rubber processing, where benzothiazole stays robust. Thiazole, though related in structure, lacks the fused benzene ring—leading to shorter shelf lives in comparable uses and less resistance to thermal breakdown.
Our hands-on experience tells us that substitution errors cost more than small savings. Using an alternative compound may seem like a shortcut, but production lines quickly reveal the gaps—unexpected by-products, lost reactivity, or off-odors that a less robust ingredient can’t prevent. This is why tire makers, specialty ink formulators, and water-treatment engineers consistently come back for benzothiazole rather than generic aromatics.
Specifications tell only half the story. Practical challenges like prolonged storage, bulk transport, or dosing in automated lines can test the patience of even seasoned engineers. Drawing upon decades in the field, we already account for these factors. In tropical climates, higher warehouse temperatures sped up degradation in poorly sealed batches. After seeing and solving these situations, we now recommend and use specialized containers for sensitive logistics routes.
Benzothiazole’s sharp odor can permeate adjacent stocks in multi-product warehouses. Not everyone expects this until a few weeks later, when off-smells impact unrelated skids of goods. Our teams worked alongside logistics providers to develop handling protocols—like air-tight seals and staged offloading by compatibility class—that hold up under peak summer heat and long ocean transit times.
Many years ago, regulatory limits and restrictions on certain aromatic amines sent shockwaves through supply chains. Benzothiazole, with its clearer toxicology profile compared to some older additives, started to come forward as a safer option for long-term use in multiple sectors. By staying engaged with regulatory agencies and learning directly from safety audits, we keep our facility and our end product within bounds set for workplace exposure and environmental impact.
There is no shortcut in personal safety. Years of breathing volatile organics or cutting corners with containment do not just raise insurance costs; they harm the workforce. We made it routine for our people to handle benzothiazole under proper ventilation and always with the right gloves and goggles. These habits were built not because regulations demanded them, but because they showed clear benefits in safety records and employee retention.
Buyers come to us with more than a desire for material—they share operational headaches. Let’s say a rubber compounding factory starts seeing increased scrap rates or odd color development in finished parts. In some situations, we’ve traced these issues not to equipment settings, but to inconsistent or contaminated benzothiazole supplies. By analyzing retained production samples and sharing transparent batch test certificates, we work with customers to get their lines back to normal speed and reliability.
Another concern pops up around waste handling. Benzothiazole breaks down under aerobic treatment, yet certain by-products can cause foaming or slow biological reactors. We stepped in with technical visits, reviewing pretreatment steps and making slight changes in feed concentration. Customers saw smoother plant operation and fewer environmental compliance questions.
From our position at the source, we collaborate with research institutions, universities, and internal process development teams. The data generated on our production floor goes straight into pilot studies, helping improve not only synthesis routes but also application forecasts. For new market segments, such as advanced lubricants or high-performance coatings, we supply both standard and ultra-high-purity grades, working hand-in-hand with research labs to optimize reactivity and end-use characteristics.
Not every innovation needs elaborate capital investment. By tweaking crystallization or solvent-removal steps, we’ve been able to deliver benzothiazole with reduced trace contaminants or improved particle morphology. These seemingly minor upgrades have given downstream users easier filtration, faster reaction times, and less downtime. Field visits and joint trouble-shooting sessions help keep our product performance ahead of evolving application demands.
As attention turns toward sustainability, our approach centers on minimizing effluent and safe capture of process emissions, not only for compliance but as a house policy. Solvent recovery and recycling now form a fundamental part of the plant layout. Years of batch records have shown that integrating in-line monitoring both saves material and reduces energy use—our waste streams today run cleaner than in decades past.
Customers in Europe and Asia increasingly ask for environmental declarations or third-party certifications. Having deep visibility into the raw material sources, formulation chemistry, and process emissions means we can answer these questions with substantiated data. Auditors who have walked through our plant leave with a direct understanding of our commitments; the transparency demanded by regulations matches what we practice operationally.
From our direct perspective, benzothiazole’s appeal keeps growing because it meets technical challenges that others cannot. Clean intermediates reduce defect rates in polymer synthesis. Sturdy chemical properties give peace of mind to automotive engineers looking for long usable lifespans in high-stress parts. We see specialty markets—such as performance dyes and corrosion-mitigation products—adopt it faster due to its reliable availability and proven track record. End users get value not just from the molecule, but from a close alignment between what’s produced and what’s actually needed in complex processes.
We remain engaged with both large, established manufacturers and inventive start-ups. Some require customizations, such as graded particle sizes for faster dissolution or batch-specific certificates to suit strict regulatory markets. We treat these requests as opportunities, not problems. By working hand-in-hand with customers on process adjustments or application tweaks, both sides learn and benefit.
Emerging applications in electronics, alternative energy, and biodegradable product lines call for continuous improvement in chemical manufacturing. Benzothiazole enters new product designs thanks to its versatility and robustness. From our side, we refine the process further each year. New reactor control systems, more accurate feedback loops, and regular retraining help us trim losses and reduce emissions. Each round of innovation means the next shipment leaves the factory with a tighter specification and a lower footprint than the one before.
The drive to perfect benzothiazole synthesis is not just about outpacing competitors; it’s about making life easier for the people who build, install, and troubleshoot the products our materials support. Reliable raw materials form the quiet foundation of progress in every industry, and having seen the journey from drum to finished part, we understand the real difference that quality-focused manufacturing brings.
Standing among reactors and conveyor belts, we learn daily that every percent of improvement trickles down, not just in chemical composition, but in efficiency and worker safety. Benzothiazole presents a case study—constant refinement, feedback-driven upgrades, and a willingness to solve problems in person, not just through paperwork. This long-term commitment makes the difference in reliability, sustainability, and customer satisfaction. For us, benzothiazole is not another commodity; it is a product shaped by people’s needs and our own pride in a job done right.