[{"from": "human", "value": "Describe this molecule. [C][C][Branch1][C][C][Branch1][#Branch2][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][S]"}, {"from": "gpt", "value": "The molecule is a pharmaceutical of the chelator class. The pharmaceutical form is D-penicillamine, as L-penicillamine is toxic (it inhibits the action of pyridoxine). It is an \u03b1-amino acid metabolite of penicillin, although it has no antibiotic properties."}]