Imidazoleacetic acid (hydrochloride) (Standard) is the analytical standard of Imidazoleacetic acid (hydrochloride). This product is intended for research and analytical applications. Imidazoleacetic acid hydrochloride is a gamma-aminobutyric acid receptor agonist. Imidazoleacetic acid hydrochloride inhibits GABA-T in a non-competitive manner, with a Ki value of 0.34 mM. Imidazoleacetic acid hydrochloride increases total free GABA in brain[1][2][3].