[{"from": "human", "value": "Provide a description of this molecule. [C][C][=Branch1][C][=O][N][C@@H1][Branch1][P][C][S][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an N-acetyl-L-amino acid that is L-cysteine in which the hydrogen of the thiol group has been replace by a 1,2-dicarboxyethyl group. The first metabolite in the disposal of S-(2-succino)-L-cysteine by Bacillus subtilis. It is a N-acetyl-L-amino acid, a L-cysteine derivative and a tricarboxylic acid. It is a conjugate acid of a N-acetyl-S-(2-succino)-L-cysteine(3-)."}]