2-butyl-1,2-benzothiazol-3-one

2-butyl-1,2-benzothiazol-3-one is an organic compound with the molecular formula C11H13NOS and CAS number 4299-07-4. This heterocyclic compound belongs to the benzothiazole family and has a molecular weight of 207.29 g/mol. It is classified as a corrosive substance with significant hazard potential, requiring careful handling due to its skin corrosive and sensitizing properties.

2-butyl-1,2-benzothiazol-3-one is a solid organic compound at room temperature with the molecular formula C11H13NOS. The substance contains sulfur, nitrogen, and oxygen heteroatoms within its benzothiazole ring structure. Its molecular weight is 207.29 g/mol. Specific physical properties such as melting point, boiling point, and solubility data should be obtained from detailed technical datasheets for precise handling requirements.

2-butyl-1,2-benzothiazol-3-one is primarily used as a biocide and antimicrobial agent in various industrial applications. The compound serves as an active ingredient in preservation systems, particularly in water treatment, paints, coatings, and personal care products. Its benzothiazole structure provides effective antimicrobial properties against bacteria and fungi, making it valuable for preventing microbial growth in industrial formulations and materials.

2-butyl-1,2-benzothiazol-3-one requires strict safety measures due to its corrosive nature (Skin Corr. 1B) and sensitizing properties (Skin Sens. 1). Essential PPE includes chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume extraction. Avoid direct skin and eye contact. Use appropriate respiratory protection when handling powders or in poorly ventilated spaces to prevent inhalation exposure.

2-butyl-1,2-benzothiazol-3-one should be stored in tightly sealed containers in a cool, dry, and well-ventilated area away from direct sunlight. Keep containers upright and properly labeled according to GHS requirements. Store separately from incompatible materials, particularly strong acids, bases, and oxidizing agents. Ensure storage areas have appropriate spill containment measures due to the substance's corrosive and aquatic toxicity properties.

Immediate action is required due to the corrosive nature of 2-butyl-1,2-benzothiazol-3-one. For skin contact, immediately remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. For eye contact, flush immediately with water for 15-20 minutes. If inhaled, move to fresh air. Seek immediate medical attention for all exposures, especially skin and eye contact, as the substance can cause severe chemical burns.

2-butyl-1,2-benzothiazol-3-one must be disposed of as hazardous waste according to local and European waste regulations due to its corrosive and aquatic toxic properties. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Do not discharge into sewers, waterways, or soil due to its high aquatic toxicity (Aquatic Acute 1, Aquatic Chronic 1). Follow waste code classifications and packaging requirements for hazardous materials.

2-butyl-1,2-benzothiazol-3-one is classified as ADR Class 8 (corrosive substances), Packing Group II, indicating moderate danger level. Transportation requires proper UN-approved packaging designed for corrosive materials. Vehicles must carry appropriate placarding and documentation. Drivers need ADR certification for dangerous goods transport. Ensure packages are properly labeled with hazard pictogrammes GHS05, GHS07, and GHS09, and include proper shipping names and UN numbers on transport documents.

2-butyl-1,2-benzothiazol-3-one is subject to multiple European regulations including REACH registration requirements and CLP classification as a corrosive and sensitizing substance. The compound is not currently listed as a SVHC (Substance of Very High Concern). Users must comply with occupational exposure limits, environmental discharge restrictions, and biocide regulations where applicable. Industrial users may need specific authorizations depending on application and tonnage handled.

2-butyl-1,2-benzothiazol-3-one is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this compound to professional users across Europe with proper documentation, safety data sheets, and regulatory compliance support. As a restricted chemical requiring careful handling, purchase is typically limited to qualified industrial users with appropriate facilities and safety measures for handling corrosive and sensitizing substances.