4-Butyrolactone

**Definition:** One of the FURANS with a carbonyl thereby forming a cyclic lactone. It is an endogenous compound made from gamma-aminobutyrate and is the precursor of gamma-hydroxybutyrate. It is also used as a pharmacological agent and solvent.

**Tree numbers:** - D02.540.150 - D03.383.312.150

**Synonyms:** - 1,4-Butanolide - 4-Hydroxybutyric Acid Lactone - gamma-Butyrolactone - Furanone, tetrahydro-2- - Dihydro-2(3H)-furanone