(±)-γ-Vinyl-GABA, (R,S)-4-Amino-5-hexenoic acid, (±)-4-Aminohexenoic acid
Empirical Formula (Hill Notation):
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10, 50 mg in poly bottle

Biochem/physiol Actions

Irreversible GABA transaminase inhibitor. Increases intracellular concentration of GABA in nerve endings; possesses antiepileptic activity.

Features and Benefits

This compound is featured on the GABA Transporters, GABAA Receptors and Glutamate/GABA Synthesis and Metabolism pages of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
This compound is a featured product for Neuroscience research. Click here to discover more featured Neuroscience products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.
This compound was developed by Lundbeck. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. V8261.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC


Health hazard

Signal Word


Hazard Statements

Precautionary Statements




6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

R S Fisher
Brain research. Brain research reviews, 14(3), 245-278 (1989-07-01)
The study of mechanisms of the epilepsies requires employment of animal models. Choice of a model system depends upon several factors, including the question to be studied, the type of epilepsy to be modelled, familiarity and convenience. Over 50 models...
Peter Weber et al.
Epilepsy & behavior : E&B, 24(1), 138-140 (2012-04-17)
We report the case of an adolescent girl who suffered from symptomatic refractory focal epilepsy after an arteria cerebri media insult 15 years prior to this report. Five weeks after initiation of an add-on therapy with vigabatrin, she was seizure...
The potential value of a negative finding: an illustrative example.
Kenneth Silverman et al.
JAMA psychiatry, 70(6), 571-572 (2013-04-12)
Dorota Nieoczym et al.
Progress in neuro-psychopharmacology & biological psychiatry, 39(1), 129-135 (2012-06-12)
Sildenafil, a selective phosphodiesterase 5 (PDE5) inhibitor, has recently been reported to affect convulsant activity in some animal models of seizures and epilepsy. Moreover, its influence on the protective activity of some antiepileptic drugs (AEDs) was also noted. The aim...
Barbara Nowińska et al.
Acta poloniae pharmaceutica, 69(2), 327-334 (2012-05-10)
Long-term administration of antiepileptic drugs may be connected with the risk of impairment of bone remodeling. Contrary to the reported unfavorable effect of classic antiepileptic drugs on bone metabolism, little is known about the effect of the next generation antiepileptics...
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