2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one is a synthetic organic compound with the molecular formula C19H25ClN2OS and CAS number 96489-71-3. This pyridazinone derivative has a molecular weight of 364.9 g/mol and features a complex structure containing tert-butyl groups, a chlorine atom, and a methylsulfanyl bridge. The compound is classified as acutely toxic and presents significant environmental hazards to aquatic life.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one is an organic solid compound with a molecular weight of 364.9 g/mol. The presence of tert-butyl groups and aromatic rings suggests it is likely a crystalline solid at room temperature with limited water solubility due to its hydrophobic nature. The compound contains chlorine, nitrogen, oxygen, and sulfur heteroatoms, which influence its chemical reactivity and physical properties.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one is primarily used as an intermediate in pharmaceutical and agrochemical synthesis. Its pyridazinone structure makes it valuable for developing bioactive compounds, particularly in pesticide formulations and pharmaceutical research. The compound may also serve as a building block in specialty chemical manufacturing and research applications requiring specific heterocyclic structures.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one requires careful handling due to its Acute Tox. 3 classification. Essential safety measures include wearing chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume hoods to prevent inhalation. Avoid skin and eye contact, and never eat, drink, or smoke while handling. Wash hands thoroughly after use and ensure emergency eyewash and shower facilities are accessible.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one should be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers tightly sealed and properly labeled with hazard information. Due to its environmental hazard classification, prevent release to the environment and store in secondary containment. Maintain appropriate temperature conditions and ensure storage areas are equipped with spill containment measures and restricted access.

Immediate action is required due to the compound's acute toxicity. For skin contact, remove contaminated clothing and wash affected areas with plenty of soap and water. In case of eye contact, rinse immediately with clean water for at least 15 minutes. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician and provide the safety data sheet to medical personnel.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one must be disposed of through licensed hazardous waste disposal companies due to its toxic and environmental hazard classifications. The compound cannot be disposed of in regular waste streams or sewage systems. Collect waste in properly labeled, compatible containers and arrange collection by authorized waste management specialists. Follow local and European waste regulations, including proper waste classification codes and documentation requirements.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one is classified as ADR Class 6.1 (Toxic substances), Packing Group III. Transport requires proper dangerous goods packaging, labeling with GHS06 and GHS09 pictograms, and appropriate shipping documentation. Vehicles must carry emergency equipment and drivers need ADR training. Packages must bear the 'DANGER' signal word and comply with UN packaging requirements for toxic substances with environmental hazards.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one is subject to European REACH and CLP regulations due to its hazardous classification. The compound is not currently listed as an SVHC (Substance of Very High Concern). Users must comply with safety data sheet requirements, proper classification and labeling under CLP, and potential registration obligations under REACH. Additional restrictions may apply for specific uses or quantities handled.

2-tert-butyl-5-[(4-tert-butylphenyl)methylsulfanyl]-4-chloropyridazin-3-one is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this compound to industrial and research customers across Europe with proper documentation, safety data sheets, and regulatory compliance. As a professional chemical distributor, OYSI ensures quality standards and handles all necessary hazardous material shipping requirements for this regulated substance.