| Message: | gamma-Butyrolactone(GBL)
CAS: 96-48-0
MF: C4H6O2
MW: 86.09
Chemical Properties: colourless oily liquid
Usage: r-butyrolactone is one kind of important fine chemicalintermediate, simultaneously also is one
kind of performance fine highboiling point solvent, ideal antioxidant, plasticizer,extracting agent,
absorbent, dispersing agent, solid stain, Coagulation Reagent.
General Description Clear colorless oily liquid with a pleasant odor.
gamma-Butyrolactone(GBL) Applications:
1). Used to produce a-pyrrolidone, 1-Methyl-2-pyrrolidinone, polyvinyl pyrrolidone, and α -Acetyl-γ -butyrolactone;
2). used as anaesthetic and tranquilizer, used to produce ciprofloxacin and interferon, as the
intermediate of vitamin and rolicyprine;
3). As antioxidant, plasticizer, extractant, adsorbent, dispersant, fixative and curing agent;
4). Used in battery, capacitor and development of color film.
gamma-Butyrolactone(GBL) introduction:
Gamma-Butyrolactone (γ-butyrolactone or GBL) is a hygroscopic colorless liquid with a weak
characteristic odor which is 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 GHB, and it is used
as a recreational intoxicant with effects similar to alcohol.
GBL is a lactone. It is hydrolyzed under basic conditions, for example in a sodium hydroxide solution
into sodium gamma-hydroxybutyrate, the sodium salt of gamma-hydroxybutyric acid. Under acidic
conditions it forms an equilibrium mixture of both compounds. These compounds then may go on to
form a polymer. When treated with a non-nucleophilic base, like lithium diisopropylamide, GBL can
become an alpha-carbon nucleophile. The related compound caprolactone can be used to make a
polyester in this manner.
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