1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene is an organic chemical compound with the molecular formula C15H10N2O2 and CAS number 101-68-8. This diisocyanate compound has a molecular weight of 250.25 g/mol and belongs to the family of aromatic isocyanates. It is classified as a hazardous substance with multiple health risks including carcinogenic potential, respiratory sensitization, and organ toxicity, requiring careful handling in industrial applications.

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene is typically a solid or viscous liquid at room temperature with a characteristic sharp odor. As an aromatic diisocyanate, it has limited water solubility but dissolves readily in organic solvents. The compound is reactive due to its isocyanate functional groups, which readily react with compounds containing active hydrogen atoms such as water, alcohols, and amines, forming urethane or urea linkages.

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene is primarily used as a building block in polyurethane production. It serves as a crosslinking agent in the manufacture of flexible and rigid foams, coatings, adhesives, and elastomers. The compound is also utilized in the production of specialty polymers and as an intermediate in organic synthesis. Its applications span across automotive, construction, furniture, and industrial coating industries where durable polymer materials are required.

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene requires strict safety measures including respiratory protection, chemical-resistant gloves, and eye protection due to its respiratory sensitization and irritant properties. Work must be conducted in well-ventilated areas or under fume extraction systems. Skin contact must be avoided as it causes irritation and sensitization. Personnel should be trained in isocyanate handling procedures and emergency response protocols before working with this substance.

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene must be stored in tightly sealed containers in a cool, dry place away from moisture and heat sources. The storage area should be well-ventilated and separated from incompatible materials such as water, alcohols, amines, and strong bases. Containers should be made of compatible materials and properly labeled. Temperature control is essential to prevent decomposition and maintain product stability throughout the storage period.

Immediate action is required upon contact with 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene. For skin contact, remove contaminated clothing and wash thoroughly with soap and water. In case of eye contact, rinse immediately with plenty of water for at least 15 minutes. If inhaled, move to fresh air immediately. Seek medical attention promptly, especially for respiratory exposure due to sensitization risks. Never induce vomiting if ingested and contact poison control immediately.

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene must be disposed of as hazardous waste through licensed waste management companies. The substance cannot be disposed of in regular waste streams due to its toxic and potentially carcinogenic properties. Disposal must comply with local and EU waste regulations including proper classification, packaging, and documentation. Small quantities should be neutralized with appropriate agents before disposal, while larger amounts require specialized incineration at authorized facilities.

Transportation of 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene must comply with ADR dangerous goods regulations. The substance requires appropriate packaging, labeling with GHS07 and GHS08 pictograms, and proper shipping documentation. Vehicles must be equipped for hazardous material transport with emergency equipment and trained drivers. Temperature control during transport may be necessary to maintain product stability and prevent decomposition that could increase hazard levels.

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene is subject to extensive EU regulations including REACH registration requirements and CLP classification as Category 2 carcinogen and respiratory sensitizer. It requires safety data sheets, exposure scenarios, and risk management measures. Workplace exposure limits apply, and occupational health surveillance may be mandatory. The substance is not currently listed as SVHC but faces ongoing regulatory scrutiny due to its hazardous properties and potential restrictions on certain uses.

1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene is available through OYSI, a trusted European distributor of specialty chemicals. OYSI provides this substance with full regulatory compliance including proper documentation, safety data sheets, and technical support. As a specialized chemical distributor, OYSI ensures product quality and regulatory compliance for industrial customers across Europe requiring this diisocyanate for polyurethane production and other applications.