The molecule is a peptide anion that is the conjugate base of gamma-Glu-Leu, obtained by removal of protons from the two carboxy groups as well as protonation of the amino group; major species at pH 7.3. It is a conjugate base of a gamma-Glu-Leu.
(2S)-2-[[(4S)-4-azaniumyl-4-carboxylatobutanoyl]amino]-4-methylpentanoate