Isocyanatobenzene

Isocyanatobenzene is an organic chemical compound with the molecular formula C7H5NO and CAS number 103-71-9. It belongs to the isocyanate family, characterized by the presence of the -NCO functional group attached to a benzene ring. With a molecular weight of 119.12 g/mol, this aromatic isocyanate serves as an important intermediate in organic synthesis and industrial chemical processes.

Isocyanatobenzene is typically a colorless to pale yellow liquid at room temperature with a characteristic pungent odor. As an aromatic isocyanate, it exhibits moderate volatility and is generally soluble in organic solvents such as toluene, acetone, and ethyl acetate, while being reactive with water and alcohols due to its isocyanate functionality.

Isocyanatobenzene is primarily used as a chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty polymers. It serves as a building block for producing carbamates, ureas, and urethane derivatives. The compound is also utilized in research laboratories for organic synthesis reactions and as a reagent in the development of new chemical compounds and materials.

Isocyanatobenzene requires careful handling with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid contact with skin, eyes, and moisture, as isocyanates can cause irritation and sensitization. Use explosion-proof equipment when necessary.

Isocyanatobenzene should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from moisture, heat sources, and incompatible materials. Keep away from water, alcohols, amines, and strong bases which can react with the isocyanate group. Storage containers should be made of compatible materials and properly labeled according to safety regulations.

In case of skin contact with isocyanatobenzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with clean water for 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical care.

Isocyanatobenzene waste must be disposed of according to local and national hazardous waste regulations. The compound should never be poured down drains or disposed of with regular waste. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Small quantities may be neutralized with appropriate reagents before disposal, following established safety protocols and regulatory requirements.

Isocyanatobenzene is classified under ADR Class 6.1 (Toxic substances), Packing Group I, indicating high toxicity during transport. It must be packaged in UN-approved containers with proper labeling and documentation. Transportation requires compliance with dangerous goods regulations, including appropriate vehicle marking, driver training, and emergency response procedures for toxic substances.

Isocyanatobenzene is subject to standard chemical regulations including REACH registration requirements in Europe and CLP classification for hazard communication. While not currently listed as a Substance of Very High Concern (SVHC), it must comply with occupational safety standards and workplace exposure limits. Users should maintain safety data sheets and ensure proper worker training and protection measures.

Isocyanatobenzene is available through specialized chemical distributors across Europe, including OYSI, a reliable European distributor of technical chemicals. Professional suppliers ensure proper packaging, documentation, and regulatory compliance for industrial and research applications. Contact qualified distributors for availability, specifications, and delivery options that meet your specific requirements and local regulations.