4-methylideneoxetan-2-one

4-methylideneoxetan-2-one is an organic compound with the molecular formula C4H4O2 and CAS number 674-82-8. This chemical belongs to the oxetanone family, featuring a four-membered lactone ring with an exocyclic double bond. With a molecular weight of 84.07 g/mol, it is classified as a flammable liquid and acute toxicity hazard under GHS classification, requiring careful handling in industrial applications.

4-methylideneoxetan-2-one is a liquid at room temperature with specific physicochemical characteristics typical of small lactone compounds. The compound exhibits flammable properties as indicated by its Flam. Liq. 3 classification. Its compact molecular structure (C4H4O2) and relatively low molecular weight of 84.07 g/mol influence its volatility and handling requirements. Detailed physical properties should be confirmed through safety data sheets for specific applications.

4-methylideneoxetan-2-one serves as a versatile chemical intermediate in organic synthesis and pharmaceutical manufacturing. Its reactive oxetanone structure makes it valuable for polymer chemistry applications and as a building block for more complex molecules. The compound is particularly useful in research and development activities where four-membered lactone functionality is required. Industrial applications may include specialty chemical synthesis and materials science research.

4-methylideneoxetan-2-one requires careful handling due to its flammable and acute toxicity properties. Personal protective equipment including chemical-resistant gloves, safety goggles, and appropriate respiratory protection should be worn. Work in well-ventilated areas away from ignition sources, as the compound is classified as Flam. Liq. 3. Follow standard chemical handling procedures and ensure emergency equipment is readily available. Always consult the safety data sheet before use.

4-methylideneoxetan-2-one should be stored in a cool, dry, well-ventilated area away from heat sources and ignition points due to its flammable nature. Use appropriate chemical storage cabinets designed for flammable liquids. Keep containers tightly sealed to prevent moisture ingress and contamination. Store away from incompatible materials and ensure proper labeling with GHS pictograms GHS02 and GHS07. Regular inventory checks and temperature monitoring are recommended.

Immediate action is required in case of contact with 4-methylideneoxetan-2-one due to its acute toxicity classification. For skin contact, remove contaminated clothing and rinse thoroughly with water for at least 15 minutes. In case of eye contact, flush immediately with clean water and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical care. Always consult the safety data sheet for specific first aid measures.

4-methylideneoxetan-2-one must be disposed of according to local and national hazardous waste regulations due to its flammable and toxic properties. The compound cannot be disposed of through regular waste streams and requires specialized hazardous waste treatment facilities. Contact licensed waste disposal companies for proper collection and treatment. Empty containers should also be handled as hazardous waste. Documentation of disposal activities is typically required for regulatory compliance.

4-methylideneoxetan-2-one is classified under ADR Class 6.1 (toxic substances), Packing Group I, indicating high danger level for transport. Specialized packaging meeting UN specifications is required, along with proper hazard labeling and documentation. Transport must comply with dangerous goods regulations, requiring certified drivers and appropriate vehicle equipment. Emergency response information must accompany shipments. Coordination with logistics providers experienced in hazardous materials transport is essential.

4-methylideneoxetan-2-one is subject to various chemical regulations including REACH registration requirements in Europe and CLP classification obligations. The compound is not currently listed as a Substance of Very High Concern (SVHC), but its Acute Tox. 4 and Flam. Liq. 3 classifications impose specific labeling and safety requirements. Users must comply with occupational exposure limits, transport regulations (ADR), and workplace safety legislation. Regular regulatory updates should be monitored.

4-methylideneoxetan-2-one is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides reliable supply chains for laboratory and industrial customers across Europe, ensuring proper handling, documentation, and regulatory compliance. As a professional chemical distributor, OYSI can provide technical support, safety data sheets, and certificates of analysis. Contact OYSI directly for availability, specifications, and delivery options for your specific requirements.