The molecule is a non-proteinogenic L-alpha-amino acid that is L-glutamic acid in which one of the gamma-hydrogens is substituted by a carboxy group. It is a tricarboxylic acid and a non-proteinogenic L-alpha-amino acid. It is a tautomer of a gamma-carboxy-L-glutamic acid zwitterion.
(3S)-3-aminopropane-1,1,3-tricarboxylic acid