[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch1][S][=C][C][=C][Ring1][=Branch1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][O]"}, {"from": "gpt", "value": "The molecule is an alpha-amino-acid anion that is the conjugate base of tyrosine, arising from deprotonation of the carboxy group. It is a conjugate base of a tyrosine. It is a conjugate acid of a tyrosinate(2-)."}]