[{"from": "human", "value": "Provide a description of this molecule. [C][O][C][=Branch1][C][=O][C@H1][Branch2][Ring1][Branch1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][N]"}, {"from": "gpt", "value": "The molecule is a phenyl sulfate oxoanion arising from arising from deprotonation of the sulfate OH group of L-tyrosine methyl ester 4-sulfate; major species at pH 7.3. It is a conjugate base of a L-tyrosine methyl ester 4-sulfate."}]