(E)-but-2-enal

(E)-but-2-enal is an organic compound with the molecular formula C4H6O and CAS number 4170-30-3. It is an α,β-unsaturated aldehyde with a molecular weight of 70.09 g/mol. This chemical belongs to the aldehyde family and contains a conjugated system with a double bond adjacent to the carbonyl group. It is classified as a highly hazardous substance with multiple health and safety risks including flammability, mutagenicity, and acute toxicity.

(E)-but-2-enal is a liquid organic compound at room temperature with characteristic aldehyde properties. As an unsaturated aldehyde, it typically has a pungent, irritating odor. The compound has a molecular weight of 70.09 g/mol and contains both a carbonyl group and a carbon-carbon double bond in trans configuration. Its chemical structure makes it reactive toward nucleophiles and prone to polymerization under certain conditions.

(E)-but-2-enal is primarily used as an intermediate in organic synthesis and chemical manufacturing processes. It serves as a building block for the production of various chemicals, pharmaceuticals, and specialty compounds. Due to its reactive aldehyde group and conjugated double bond system, it participates in numerous chemical reactions including condensation, addition, and polymerization reactions. Its applications are typically limited to industrial and research settings due to its high toxicity profile.

(E)-but-2-enal requires extreme caution during handling due to its high toxicity and flammability. Personal protective equipment must include chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas or under fume hoods. Avoid all sources of ignition as it is classified as Flam. Liq. 2. Prevent skin and eye contact, and avoid inhalation of vapors. Work in controlled environments with emergency procedures in place due to its Acute Tox. 2 and 3 classifications.

(E)-but-2-enal must be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Keep containers tightly sealed in secondary containment to prevent leaks. Store separately from incompatible materials such as strong oxidizers, bases, and reducing agents. Temperature control is essential to prevent degradation or dangerous reactions. Access should be restricted to trained personnel only, with appropriate fire suppression systems nearby due to its flammable nature.

Immediate action is critical due to the high acute toxicity of (E)-but-2-enal. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes while holding eyelids open. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and rinse mouth with water. Seek immediate medical attention in all cases of exposure.

(E)-but-2-enal must be disposed of as hazardous waste according to local and national regulations. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Never discharge into drains, soil, or waterways due to environmental risks. Small quantities should be collected in appropriate containers and labeled clearly for hazardous waste pickup. Incineration at authorized facilities may be required. Always consult current waste disposal regulations and safety data sheets before disposal.

(E)-but-2-enal is classified under ADR as Class 6.1 (toxic substances) Packing Group I, indicating very high danger during transport. Special packaging, labeling, and documentation requirements apply for road transport. Vehicles must display appropriate hazard placards and carry emergency response information. Only trained personnel with proper certifications should handle transportation. Packaging must meet UN specification requirements and be compatible with the chemical to prevent leakage or reactions during transit.

(E)-but-2-enal is subject to multiple regulatory frameworks including REACH registration requirements in Europe and CLP classification for hazard communication. Its Muta. 2 classification places it under strict handling and use restrictions. Although not currently listed as a SVHC, its high toxicity profile means it may face additional regulatory scrutiny. Companies must comply with occupational exposure limits, reporting requirements, and safety data sheet obligations when manufacturing, importing, or using this substance.

(E)-but-2-enal is available through specialized chemical distributors in Europe, including OYSI, which supplies high-quality chemicals to industrial customers across the European market. Due to its hazardous nature and regulatory requirements, purchases typically require proper documentation, safety assessments, and compliance verification. Buyers must demonstrate appropriate handling capabilities and end-use justification. Contact OYSI's technical team for availability, specifications, and regulatory support for your specific application requirements.