Azepan-2-one

Azepan-2-one is a seven-membered cyclic amide, also known as caprolactam, with the molecular formula C6H11NO and CAS number 105-60-2. This organic compound has a molecular weight of 113.16 g/mol and belongs to the lactam family of chemicals. It is classified as a moderately hazardous substance with acute toxicity and irritant properties, requiring careful handling in industrial applications.

Azepan-2-one is typically a white crystalline solid at room temperature with a characteristic amine-like odor. It exhibits good solubility in water and polar organic solvents due to its amide functional group. The compound has a melting point around 69-71°C and is hygroscopic, meaning it readily absorbs moisture from air. Its cyclic structure provides stability while maintaining reactivity for polymerization processes.

Azepan-2-one is primarily used as a monomer in the production of nylon-6 through ring-opening polymerization. It serves as a key raw material in the manufacture of synthetic fibers, engineering plastics, and films used in textiles, automotive parts, and packaging applications. The compound is also utilized in the production of specialty chemicals and as an intermediate in pharmaceutical synthesis.

Azepan-2-one requires careful handling due to its Acute Tox. 4 classification and irritant properties. Wear appropriate PPE including chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation to prevent inhalation exposure. Avoid skin and eye contact, and do not ingest. Work in well-ventilated areas and have eyewash stations readily available for emergency use.

Azepan-2-one should be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly closed to prevent moisture absorption due to its hygroscopic nature. Store away from strong oxidizing agents and incompatible materials. Maintain storage temperature below 25°C and ensure proper labeling according to GHS requirements with Warning signal word.

In case of skin contact with azepan-2-one, immediately remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15-20 minutes and seek medical attention. If inhaled, move to fresh air immediately. If ingested, do not induce vomiting and seek immediate medical assistance.

Azepan-2-one waste must be disposed of according to local and national hazardous waste regulations. Do not discharge into drains, waterways, or soil. Collect waste in properly labeled, compatible containers and arrange disposal through licensed hazardous waste contractors. Small quantities may be incinerated at high temperatures in approved facilities. Always consult local environmental authorities for specific disposal requirements.

Azepan-2-one transportation requirements depend on quantity and packaging, as specific ADR classification data is not available for this substance. Follow general chemical transport regulations, using appropriate packaging that prevents leakage and contamination. Ensure proper labeling with GHS pictogram GHS07 and Warning signal word. Consult transport authorities for specific classification requirements and use certified dangerous goods packaging when required.

Azepan-2-one is subject to REACH regulation in Europe and must be registered for commercial use. It is classified under CLP regulation with specific hazard classes including Acute Tox. 4, STOT SE 3, Skin Irrit. 2, and Eye Irrit. 2. The substance is not currently listed as SVHC. Manufacturers and importers must comply with safety data sheet requirements and workplace exposure limit regulations.

Azepan-2-one is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across Europe. OYSI provides high-quality azepan-2-one with complete regulatory documentation, safety data sheets, and technical support. Contact OYSI directly for availability, specifications, and delivery options to your location within Europe for both small-scale and bulk requirements.