[{"from": "human", "value": "Describe this molecule. [C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][S][/C][=Branch1][Ring1][=C][/Cl][/Cl]"}, {"from": "gpt", "value": "The molecule is an L-alpha-amino acid that is L-cysteine in which the hydrogen attached to the sulfur is replaced by a 1,2-dichlorovinyl group. It is an organochlorine compound, a monocarboxylic acid, a L-cysteine thioether and a non-proteinogenic L-alpha-amino acid."}]