4-methylbenzenesulfonohydrazide

4-methylbenzenesulfonohydrazide is an organic compound with the molecular formula C7H10N2O2S and CAS number 1576-35-8. This chemical belongs to the sulfonohydrazide family and has a molecular weight of 186.23 g/mol. It is classified as a self-reactive substance (Self-react. D) under GHS regulations, indicating it can undergo exothermic decomposition reactions. The compound contains both sulfonyl and hydrazide functional groups, making it useful in various chemical synthesis applications.

4-methylbenzenesulfonohydrazide is typically a white to off-white crystalline solid at room temperature. The compound has a molecular weight of 186.23 g/mol and contains sulfur, nitrogen, and oxygen atoms in its structure. As a sulfonohydrazide derivative, it generally exhibits moderate solubility in polar solvents and may have limited solubility in water. The presence of the methyl group on the benzene ring influences its physical properties and reactivity compared to unsubstituted analogs.

4-methylbenzenesulfonohydrazide is primarily used as a chemical intermediate in organic synthesis and pharmaceutical manufacturing. It serves as a reagent in the preparation of various nitrogen-containing compounds and can act as a nucleophilic agent in chemical reactions. The compound is also utilized in the synthesis of heterocyclic compounds and may find applications in the development of pharmaceutical active ingredients. Its sulfonohydrazide structure makes it valuable for creating nitrogen-nitrogen bond formations in organic chemistry.

4-methylbenzenesulfonohydrazide must be handled with extreme caution due to its self-reactive properties (Class D). Always wear appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and protective clothing. Work in a well-ventilated area or under a fume hood to avoid inhalation. Avoid heat, sparks, open flames, and friction as these can trigger decomposition reactions. Use non-sparking tools and ground all equipment to prevent static electricity buildup during handling operations.

4-methylbenzenesulfonohydrazide should be stored in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources. Keep containers tightly closed and store below 25°C to prevent decomposition. Separate from strong oxidizers, acids, and incompatible materials. Use original containers or approved storage vessels made of compatible materials. Implement temperature monitoring and ensure storage areas have appropriate fire suppression systems designed for self-reactive substances.

In case of skin contact with 4-methylbenzenesulfonohydrazide, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, flush eyes with clean water for 15 minutes while keeping eyelids open. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and rinse mouth with water. Seek immediate medical attention in all cases and provide the safety data sheet to medical personnel.

4-methylbenzenesulfonohydrazide waste must be disposed of according to local, national, and international hazardous waste regulations. Contact licensed hazardous waste disposal companies experienced in handling self-reactive materials. Never dispose of in regular trash, pour down drains, or release into the environment. Small quantities may require special treatment or controlled incineration at authorized facilities. Always consult local environmental authorities and follow waste classification codes for proper disposal documentation and handling procedures.

4-methylbenzenesulfonohydrazide is classified under ADR Class 4.1 as a flammable solid with self-reactive properties. Transportation must comply with dangerous goods regulations including proper packaging, labeling, and documentation. Use UN-approved packaging suitable for self-reactive substances and ensure vehicles are equipped with appropriate fire extinguishers. Drivers must hold ADR certification for Class 4.1 materials. Avoid transport during extreme temperatures and ensure proper segregation from incompatible materials during shipment.

4-methylbenzenesulfonohydrazide is subject to various chemical regulations including REACH registration requirements in Europe and CLP classification as a self-reactive substance. It is not currently listed as a Substance of Very High Concern (SVHC). Companies must comply with safety data sheet requirements, proper labeling with GHS02 pictogram and 'Danger' signal word. Additional restrictions may apply depending on intended use, quantity handled, and specific national regulations in different countries.

4-methylbenzenesulfonohydrazide is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this self-reactive compound to industrial customers across Europe with proper regulatory compliance and technical support. As a specialized chemical requiring careful handling and storage, it's essential to work with experienced suppliers who understand the safety requirements and can provide appropriate packaging, documentation, and delivery services for hazardous materials.