[{"from": "human", "value": "What can you tell me about this molecule? [C][S][C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an alpha-amino-acid anion obtained by deprotonation of the two carboxy groups and protonation of the amino group of 3-methylthioaspartic acid. It is an alpha-amino-acid anion and a sulfur-containing amino-acid anion. It is a conjugate base of a 3-methylthioaspartic acid."}]