The molecule is the conjugate base of N-acetyl-L-histidine; major species at pH 7.3. It is a N-acyl-L-alpha-amino acid anion and a histidinate derivative. It is a conjugate base of a N-acetyl-L-histidine.
(2S)-2-acetamido-3-(1H-imidazol-5-yl)propanoate