[{"from": "human", "value": "Describe this molecule. [C][=C][C][=Branch1][O][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][N][C][C][=C][N][=C][C][=Branch1][Ring2][=N][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][Branch2][N]"}, {"from": "gpt", "value": "The molecule is a pteroic acid. It is functionally related to a 2-aminopteridin-4-ol. It is a conjugate base of a 2-amino-6-{[(4-carboxyphenyl)amino]methyl}-4-hydroxypteridin-1-ium. It is a conjugate acid of a 4-{[(2-amino-4-hydroxypteridin-6-yl)methyl]amino}benzoate. It is a tautomer of a 4-{[(2-amino-4-oxo-3,4-dihydropteridin-6-yl)methyl]amino}benzoic acid and a 4-{[(2-amino-4-oxo-1,4-dihydropteridin-6-yl)methyl]amino}benzoic acid."}]