2-methyl-1,2-benzothiazol-3-one

2-methyl-1,2-benzothiazol-3-one is an organic chemical compound with the molecular formula C8H7NOS and CAS number 2527-66-4. This benzothiazole derivative has a molecular weight of 165.21 g/mol and belongs to the heterocyclic compound family. It is classified as a hazardous substance with multiple safety concerns including acute toxicity, skin corrosion, eye damage, and skin sensitization properties, requiring careful handling in industrial applications.

2-methyl-1,2-benzothiazol-3-one is a solid organic compound at room temperature with a molecular weight of 165.21 g/mol. The compound contains sulfur, nitrogen, and oxygen atoms within its benzothiazole ring structure, giving it specific chemical reactivity. Its exact physical properties such as melting point, boiling point, and solubility depend on purity and specific conditions, but it typically appears as a crystalline solid with characteristic aromatic properties.

2-methyl-1,2-benzothiazol-3-one is primarily used as an intermediate in chemical synthesis and pharmaceutical manufacturing. This benzothiazole derivative serves as a building block for producing various organic compounds, including potential pharmaceutical active ingredients and specialty chemicals. Its unique molecular structure makes it valuable in research and development applications, particularly in medicinal chemistry and materials science where benzothiazole derivatives are required for specific synthetic pathways.

2-methyl-1,2-benzothiazol-3-one requires strict safety measures due to its corrosive and toxic properties. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, face protection, and protective clothing to prevent skin and eye contact. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation. The substance can cause severe skin burns, eye damage, and acute toxicity, so minimize exposure time and ensure emergency shower and eyewash stations are accessible.

2-methyl-1,2-benzothiazol-3-one should be stored in tightly sealed, chemically compatible containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Due to its corrosive nature (Skin Corr. 1C), use corrosion-resistant containers and ensure secondary containment. Store separately from oxidizing agents, bases, and metals. Maintain proper labeling with GHS pictograms (GHS06, GHS05, GHS09) and ensure storage areas are equipped with appropriate spill control measures and emergency equipment.

Immediate action is critical due to the substance's corrosive properties. For skin contact, immediately remove contaminated clothing and rinse affected area with copious amounts of water for at least 15 minutes, then seek medical attention. In case of eye contact, flush immediately with water for at least 15 minutes and get emergency medical care. If inhaled, move to fresh air immediately. If swallowed, do not induce vomiting and seek immediate medical attention. Always consult the safety data sheet for specific first aid measures.

2-methyl-1,2-benzothiazol-3-one must be disposed of as hazardous waste in accordance with local and European waste regulations. The substance cannot be disposed of in regular waste streams due to its toxic and corrosive properties. Contact licensed hazardous waste disposal companies for proper collection and treatment. Ensure proper waste classification according to the European Waste Catalogue and maintain disposal documentation. Small quantities should be collected in compatible containers and labeled appropriately until professional disposal can be arranged.

2-methyl-1,2-benzothiazol-3-one is classified as ADR Class 8 (corrosive substances), Packing Group III for transportation. This classification requires specific packaging, labeling, and documentation for road transport within Europe. Use UN-approved packaging suitable for corrosive materials, display appropriate hazard labels and placards, and ensure proper shipping documentation including transport document with emergency information. Only trained personnel should handle transport operations, and vehicles must comply with ADR requirements for Class 8 dangerous goods.

2-methyl-1,2-benzothiazol-3-one is subject to multiple European chemical regulations including REACH registration requirements and CLP classification and labeling. The substance is not currently listed as a Substance of Very High Concern (SVHC), but its hazardous properties require compliance with occupational safety regulations and chemical safety assessments. Users must follow workplace exposure limits, implement risk management measures, and ensure proper safety data sheet communication throughout the supply chain according to European chemical legislation.

2-methyl-1,2-benzothiazol-3-one is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this hazardous substance with proper documentation, safety data sheets, and regulatory compliance support to qualified industrial customers. As a professional chemical distributor, OYSI ensures appropriate packaging, labeling, and transport arrangements according to ADR Class 8 requirements. Contact OYSI directly for availability, technical specifications, and ordering procedures for this regulated chemical substance.