Oxetan-2-one

Oxetan-2-one is a four-membered cyclic lactone with the molecular formula C3H4O2 and CAS number 57-57-8. This organic compound has a molecular weight of 72.06 g/mol and features a strained ring structure that makes it highly reactive. It is classified as a dangerous substance with carcinogenic properties (Carc. 1B) and acute toxicity (Acute Tox. 2), requiring careful handling and specialized safety measures in industrial applications.

Oxetan-2-one is a colorless liquid at room temperature with a characteristic sharp odor. Due to its polar lactone structure, it exhibits good solubility in polar organic solvents and moderate solubility in water. The compound has a relatively low molecular weight of 72.06 g/mol and contains a highly strained four-membered ring, which contributes to its high reactivity and tendency to undergo ring-opening reactions under various conditions.

Oxetan-2-one serves primarily as a chemical intermediate in organic synthesis and pharmaceutical manufacturing. Its reactive lactone structure makes it valuable for producing various derivatives and polymers. The compound is used in specialized chemical reactions where ring-opening polymerization or nucleophilic substitution is required. Due to its carcinogenic classification, its use is strictly limited to controlled industrial environments with appropriate safety measures and qualified personnel.

Oxetan-2-one requires extensive safety precautions due to its carcinogenic and acutely toxic properties. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas or fume hoods. Direct skin and eye contact must be avoided, and inhalation prevented. Work should only be conducted by trained personnel in controlled environments with emergency procedures in place, following strict occupational exposure limits and safety protocols.

Oxetan-2-one must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Storage areas should be secure and accessible only to authorized personnel due to the carcinogenic classification. The compound should be kept away from strong bases and nucleophiles that could cause ring-opening reactions. Regular container inspection and proper labeling with appropriate hazard warnings are essential for safe storage.

Immediate action is critical for oxetan-2-one exposure due to its toxicity. 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 for 15 minutes while holding eyelids open. If inhaled, move to fresh air immediately. For all exposure types, seek immediate medical attention and provide safety data sheet information to healthcare providers. Never induce vomiting if swallowed.

Oxetan-2-one disposal requires specialized hazardous waste management due to its carcinogenic classification and toxicity. The compound cannot be disposed of through regular waste streams and must be handled by licensed hazardous waste disposal companies. Incineration at high temperatures in approved facilities is typically the preferred method. All disposal activities must comply with local, national, and European waste regulations, with proper documentation and tracking throughout the disposal process.

Oxetan-2-one is classified under ADR as Class 6.1 (Toxic substances), Packing Group I, indicating high toxicity requiring stringent transport regulations. Specialized packaging, labeling with appropriate hazard symbols (GHS06, GHS08), and documentation are mandatory. Transportation must be performed by certified carriers familiar with dangerous goods regulations. Proper emergency response information and safety data sheets must accompany shipments, and drivers require ADR training for toxic substance transport.

Oxetan-2-one is subject to comprehensive European chemical regulations under REACH and CLP due to its hazardous properties. The compound's carcinogenic classification (Carc. 1B) places it under strict occupational exposure controls and requires specialized risk assessment procedures. While not currently listed as an SVHC, its toxicity profile means it may face additional regulatory scrutiny. Users must ensure compliance with workplace exposure limits and implement appropriate risk management measures.

Oxetan-2-one is available through specialized chemical distributors in Europe, including OYSI, which supplies high-quality chemicals to industrial customers. Due to its hazardous classification, purchase is typically restricted to qualified industrial users with appropriate handling capabilities and safety infrastructure. Buyers must demonstrate proper storage facilities, trained personnel, and compliance with relevant safety regulations. Contact OYSI's technical team for availability, specifications, and regulatory guidance for your specific application requirements.