Pentyl butyrate, also known as pentyl butanoate or amyl butyrate, is an ester that is formed when pentanol is reacted with butyric acid, usually in the presence of sulfuric acid as a catalyst. This ester has a smell reminiscent of pear or apricot. This chemical is used as an additive in cigarettes.

Appearance and properties: colorless to light yellow liquid

Density: 0.863 g/mL at 25 °C(lit.)

Boiling point: 184-188 °C(lit.)

Flash point: 154 °F

Refractive index: n20/D 1.41(lit.)

Storage conditions: the warehouse is ventilated and dry at low temperature, and stored and transported separately from the oxidizer

Usage:Mainly used as spices in the food industry, making sweets, pastries, etc. It is also an excellent corrosion resistant agent, organic solvent and general reagent. For organic synthesis.