[{"from": "human", "value": "Describe this molecule. [C][C][=Branch2][=Branch1][Ring2][=C][C][C][/C][=Branch2][Branch1][N][=C][/C][C][/C][=Branch2][Branch1][Ring2][=C][/C][C][/C][=Branch2][Ring2][N][=C][/C][C][/C][=Branch2][Ring2][Ring2][=C][/C][C][/C][=Branch2][Ring1][N][=C][/C][C][/C][=Branch2][Ring1][Ring2][=C][/C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][/C][/C][/C][/C][/C][/C][C]"}, {"from": "gpt", "value": "The molecule is an organophosphate oxoanion arising from deprotonation of the diphosphate OH groups of all-trans-heptaprenyl diphosphate; major species at pH 7.3. It is a conjugate base of an all-trans-heptaprenyl diphosphate."}]