gamma-Butyrolactone
![](/Images/godic/202501/02/Gamma-Butyrolactone.svg1026.png")
![](/Images/godic/202501/02/GBL-from-xtal-3D-balls1026.png")
![Metabolic pathway of 1,4-butanediol, GBL and GHB.](/Images/godic/202501/02/GHB_metabolic_pathway.svg1026.png")
![Jugs of seized GBL.](/Images/godic/202501/02/GBLjugs1026.jpg")
γ-Butyrolactone (GBL) is a hygroscopic colorless liquid with a weak characteristic odor. Soluble in water, GBL is a common solvent and reagent in chemistry as well as being used as a flavouring, as a cleaning solvent, as a superglue remover, and as a solvent in some wet aluminium electrolytic capacitors. In humans it acts as a prodrug for γ-hydroxybutyric acid (GHB), and it is used as a recreational intoxicant with effects similar to alcohol.