[{"from": "human", "value": "Describe this molecule. [C][=C][C][=Branch1][S][=C][C][=C][Ring1][=Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][I]"}, {"from": "gpt", "value": "The molecule is the L-enantiomer of 4-iodophenylalanine. It is an enantiomer of a 4-iodo-D-phenylalanine."}]