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4-Amino butyric acid - is the chief inhibitory neurotransmitter in the mammalian central nervous system.
A 1925 (OTTO) 4-Amino butyric acid,99% Cas 56-12-2 - used in the preparation of GABA–BSA (bovine serum albumin)–GA (glutaraldehyde) conjugate, which is used as a control for GABA immunostaining.