[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch2][Ring1][Ring1][C@H1][Branch1][#C][C@H1][Branch1][O][/C][=C][Branch1][=Branch1][/C][=Branch1][C][=O][O][\\N][O][O][O]"}, {"from": "gpt", "value": "The molecule is a hexonic acid derivative that is (2Z,4S,5R)-4,5,6-trihydroxyhex-2-enoic acid substituted at position 2 by an amino group. It is an alpha-amino acid and a hexonic acid derivative. It is a tautomer of a (2Z,4S,5R)-2-amino-4,5,6-trihydroxyhex-2-enoic acid zwitterion and a (4S,5R)-4,5,6-trihydroxy-2-iminohexanoic acid."}]