Agrochemicals & Pesticides

Pharmaceutical Raw Materials CAS 96-48-0 Gamma Butyrolactone GBL C4H6O2 Safe Organic Solvents

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Quick Detail

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CAS No. | 96-48-0 |
EINECS No. | 202-509-5 |
Molecular formula | C4H6O2 |
Molecular weight | 86.09 |
Appearance | colorless liquid |
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Gamma Butyrolactone Description
Product Name: Gamma Butyrolactone (GBL)
Synonyms: butyrolactone;GBL,γ-BLO; 1,2-BUTANOLIDE;1,4-BUTANOLIDE;1,4-BUTYROLACTONE;4-Butanolide;4-BUTYROLACTONE;4-HYDROXBUTYRIC ACID LACTONE;4-HYDROXYBUTANOIC ACID LACTONE;4-HYDROXYBUTYRIC ACID GAMMA-LACTONE;4-HYDROXYBUTYRIC ACID LACTONE;4-HYROXYBUTYRIC ACID LACTONE;BLO;BUTYROLACTONE;BUTYROLACTONE,GAMMA-;endo-cis-5-norbornene-endo-2,3-dicarboxylic anhydride;FEMA 3291;GAMA-BUTYROLACTONE;GAMMA-BUTYROLACTONE;GAMMA-HYDROXYBUTYRIC ACID LACTONE;GBL;

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gamma-Butyrolactone (γ-butyrolactone or GBL) is a hygroscopic colorless oily liquid with a weak characteristic odor and is soluble in water. GBL is a common solvent and reagent in chemistry and is used as an aroma compound, as a stain remover, as a superglue remover, as a paint stripper, 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.

Application:
1)it is Used to produce a-pyrrolidone, 1-Methyl-2-pyrrolidinone, polyvinyl pyrrolidone, and α -Acetyl-γ -butyrolactone;
2) it is 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) it is Used in battery, capacitor and development of color film.

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Gamma-Butyrolactone (γ-butyrolactone or GBL)
Product Description:
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.

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GBL has been found in extracts from samples of unadulterated wines.[3] This finding indicates that GBL is a naturally occurring component in some wines and may be present in similar products. The concentration detected was approximately 5 μg/mL and was easily observed using a simple extraction technique followed by GC/MS analysis. GBL can be found in cheese flavourings but typically results in a content of 0.0002% GBL in the final foodstuff.

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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.


GBL is not active in its own right; its mechanism of action stems from its identity as a prodrug of GHB.
The hypnotic effect of GHB is enhanced by combination with alcohol. A 2003 rat study showed that GBL in combination with ethanol showed a potentiated hypnotic effect, as the sleep-timing measure was longer than both of the individual components combined

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GBL is rapidly converted into GHB by paraoxonase (lactonase) enzymes, found in the blood.[7][8] Animals which lack these enzymes exhibit no effect from GBL.[7] GBL is more lipophilic (fat soluble) than GHB, and so is absorbed faster and has higher bioavailability. Because of these pharmacokinetic differences, GBL tends to be more potent and faster-acting than GHB, but has a shorter duration; whereas the related compound 1,4-butanediol (1,4-B) tends to be slightly less potent, slower to take effect but longer-acting than GHB.

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