The molecule is an L-alpha-amino acid anion that is the conjugate base of O(4')-sulfo-L-tyrosine; major species ar pH 7.3. It has a role as a human metabolite. It is a conjugate base of an O(4')-sulfo-L-tyrosine.
(2S)-2-azaniumyl-3-(4-sulfonatooxyphenyl)propanoate