[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C][=Branch2][=Branch1][=Branch2][=C][Branch1][=Branch1][N][C][Ring1][Branch1][=O][/C][=C][/C][=Branch2][Branch1][#Branch2][=C][Branch2][Branch1][Ring2][/C][=Branch2][Ring2][N][=C][/C][=N][/C][=Branch2][Ring1][=Branch1][=C][\\C][=NH1+1][C][=Branch1][C][=O][C][=Branch1][O][=C][Ring1][=Branch1][C][C][C][=Branch1][C][=O][O-1][C][/C][=Branch1][=Branch1][=C][Ring2][Ring1][C][C][C][C][C][=Branch1][C][=O][O-1][/N][\\-Ring2][Ring1][=C][C][=C][C][C][=C]"}, {"from": "gpt", "value": "The molecule is a linear tetrapyrrole anion obtained by deprotonation of the two carboxy groups and protonation of the imine nitrogen of biliverdin delta; It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a linear tetrapyrrole anion and a dicarboxylic acid monoanion. It is a conjugate base of a biliverdin delta."}]