[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C][=N][C][=Branch2][Ring2][C][=C][N][C][Ring1][=Branch1][=N][C][=Branch1][Branch1][=C][Ring1][Branch1][O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a doubly-charged organosulfate oxoanion arising from deprotonation of both sulfo groups of Watasenia luciferin; major species at pH 7.3. It is a conjugate base of a Watasenia luciferin."}]