Gamma butyrolactone
CAS number 96-48-0
General
Synonyms: 4-hydroxybutyric acid gamma-lactone, gamma-6480, agrisynth blo,
gamma-bl, blo, blon, 4-butanolide, 1,2-butanolide, 1,4-butanolide,
gamma-4-hydroxy-butyric acid, butyric acid lactone, butyrolactone,
alpha-butyrolactone, 4-butyrolactone, butyryl lactone, 4-deoxytetronic
acid, dihydro-2(3H)-furanone, gamma-hydroxybutyric acid cyclic ester,
2-oxolanone, tetrahydro-2-furanone
Use: synthetic reagent, ingredient in some paint removers.
Molecular formula: C4H6O2
CAS No: 96-48-0
EINECS No: 202-509-5
Physical data
Appearance: colourless oily liquid
Melting point: -45 C
Boiling point: 204 - 206 C
Vapour density:
Vapour pressure: 1.5 mm Hg at 20 C
Density (g cm-3): 1.12
Flash point: 98 C (closed cup)
Explosion limits: 1.4 - 16%
Autoignition temperature:
Water solubility:
Stability
Stable. Hygroscopic. Incompatible with strong oxidizing agents, strong
acids, strong bases, strong reducing agents.
Toxicology
Inhalation may be harmful. Harmful if swallowed. Severe skin irritant.
Toxicity data
ORL-RAT LD50 1540 mg kg-1
IPR-RAT LD50 1000 mg kg-1
ORL-MUS LD50 1720 mg kg-1
IPR-MUS LD50 1100 mg kg-1
SKN-GPG LD50 > 5000 mg kg-1
IVN-RBT LDLO 500 mg kg-1
Personal protection
Safety glasses, adequate ventilation.
Gamma-Butyrolactone 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.GBL has been found in extracts from samples of unadulterated
wines.
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.
Effects: Journalists have long been calling GHB liquid ecstasy. This is
incorrect - the effects are similar, but different: warm fuzzy feeling,
chattiness, increased energy, ability to stay awake longer, overwhelming
horniness, emotional intensity.
It is not for nothing that GBL took off in the sx clubs and spread to
more mainstream users from there. It's been described as 'a lovely
mellow buzz that leaves you functional and normal, but completely at
ease with the world'.
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Note /Government
Notification: These chemicals are designated as those that are used
in the manufacture of the controlled substances and are important to
the manufacture of the substances. For any (Control Substance)
products Import and Export *** subjected to your country government
laws /control substance ACT.
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Congress of the United States as Title II of the Comprehensive Drug
Abuse Prevention and Control Act of 1970.[1] The CSA is the federal
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The Act also served as the national implementing legislation for the
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