(3S)-3-ammonio-3-(3-chloro-4,5-dihydroxyphenyl)propanoyl residue
(3s)-3-ammonio-3-(3-chloro-4,5-dihydroxyphenyl)propanoyl residue
An amino-acid cation residue obtained by protonation of the amino group of (3<i>S</i>)-3-amino-3-(3-chloro-4,5-dihydroxyphenyl)propanoyl residue; major species at pH 7.3.