[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][Branch2][Branch2][Ring2][C][=C][C][=N][C][=Branch2][=Branch1][=N][=C][C][=C][Branch2][Branch1][S][/C][=Branch1][Ring1][=C][/O][/C][=Branch1][Ring2][=N][Ring1][#Branch1][C][=C][C][=Branch2][Ring2][=C][=C][Branch1][S][C][=Branch1][Ring2][=N][Ring1][Branch1][C][=C][Ring2][Ring1][#Branch1][N][Ring2][Ring1][=Branch1][C][Branch2][Ring1][#Branch1][C][C][/C][=C][Branch1][C][\\C][/C][C][/C][=C][Branch1][C][\\C][/C][C][C][=C][Branch1][C][C][C][O][C][C][C][C][=Branch1][C][=O][O][C][=Branch1][=Branch1][=C][Ring2][Ring2][=C][C][C][C][C][=Branch1][C][=O][O][C][=C]"}, {"from": "gpt", "value": "The molecule is a cyclic tetrapyrrole that consists of porphyrin bearing several substituents including methyl, vinyl, formyl, hydroxy and hydroxyalkatrienyl. The parent of the class of cytoporphyrins. It is a conjugate acid of a cytoporphyrinate."}]