Butyl butanoate

Butyl butanoate is an organic chemical compound with the molecular formula C8H16O2 and CAS number 109-21-7. This ester has a molecular weight of 144.21 g/mol and is formed by the esterification of butanoic acid with butanol. It belongs to the class of fatty acid esters and is classified as a flammable liquid (Flam. Liq. 3) under GHS regulations, requiring appropriate safety precautions during handling and storage.

Butyl butanoate is a colorless to pale yellow liquid with a characteristic fruity, apple-like odor typical of many esters. It has low solubility in water but is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The compound exhibits typical ester properties with moderate volatility and is classified as a Class 3 flammable liquid, indicating a flash point between 23°C and 60°C.

Butyl butanoate is primarily used as a flavoring agent in the food industry, providing fruity notes in various products. It serves as a solvent in coatings, paints, and lacquers due to its excellent dissolving properties for resins and polymers. Additionally, it finds application in the fragrance industry for its pleasant apple-like scent and as an intermediate in organic synthesis for producing other chemical compounds.

Butyl butanoate requires careful handling due to its flammable nature (Class 3). Use appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and protective clothing. Ensure adequate ventilation to prevent vapor accumulation and eliminate ignition sources in the work area. The substance carries a Warning signal word and GHS02 pictogram, indicating fire hazard. Handle in well-ventilated areas away from heat, sparks, and open flames.

Butyl butanoate should be stored in a cool, dry, well-ventilated area away from heat sources, ignition sources, and direct sunlight. Use appropriate containers made of compatible materials and ensure they are properly sealed to prevent vapor release. Store separately from strong oxidizing agents and acids to avoid incompatible reactions. Maintain storage temperatures below the flash point and comply with local fire safety regulations for flammable liquids.

In case of skin contact with butyl butanoate, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15 minutes and seek medical attention. If inhaled, move the person to fresh air and seek medical advice if breathing difficulties occur. In case of ingestion, do not induce vomiting and seek immediate medical attention.

Butyl butanoate must be disposed of according to local and national waste regulations as a hazardous chemical waste. Do not pour down drains or into the environment. Contact licensed waste disposal companies for proper treatment and disposal. Small quantities can often be recovered through distillation for reuse. Contaminated containers should also be treated as hazardous waste and disposed of through appropriate channels following regulatory requirements.

Butyl butanoate is classified under ADR Class 3, Packing Group III for transportation of dangerous goods. It must be transported in approved containers and vehicles suitable for flammable liquids. Proper labeling with Class 3 hazard labels is mandatory. Transport documents must include the correct shipping name, UN number, and hazard class. Drivers must have appropriate training and certification for transporting dangerous goods, and emergency response information must be available.

Butyl butanoate is subject to REACH regulation in Europe and must comply with CLP classification requirements as a flammable liquid Category 3. It is not listed as a Substance of Very High Concern (SVHC). Users must follow workplace exposure limits and safety data sheet requirements. The substance may be subject to additional food contact regulations when used in food applications and must comply with transportation regulations for dangerous goods.

Butyl butanoate is available through OYSI, a leading European distributor of technical chemicals. OYSI provides high-quality butyl butanoate with full regulatory documentation including safety data sheets and certificates of analysis. As an established chemical supplier, OYSI ensures compliance with European regulations and offers reliable supply chains across Europe. Contact OYSI directly for pricing, specifications, and availability information for your specific requirements.