The molecule is conjugate base of 4-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde having anjionic carboxy groups and a protonated primary amine; major species at pH 7.3. It is a conjugate base of a 4-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde.
(E,2S)-2-azaniumyl-7-hydroxy-4-[(Z)-2-oxidoethenyl]-6,7-dioxohept-4-enoate