The molecule is the L-enantiomer of histidinium(1+). It has a role as an Escherichia coli metabolite and a Saccharomyces cerevisiae metabolite. It is a conjugate base of a L-histidinium(2+). It is a conjugate acid of a L-histidine. It is an enantiomer of a D-histidinium(1+).
(2S)-2-azaniumyl-3-(1H-imidazol-3-ium-5-yl)propanoate