[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][=C][Branch1][Branch1][C][Ring1][Branch2][=O][C][=Branch2][Ring1][Ring2][=C][Branch1][=Branch2][C][=Branch1][Branch1][=C][Ring1][Branch2][N][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a member of the class of hydroxyanthraquinones that is 1,3-dihydroxyanthraquinone carrying additional sulfo and amino substituents at positions 2 and 4 respectively. The sodium salt is the histological dye 'nuclear fast red' It has a role as a fluorochrome and a histological dye. It is an arenesulfonic acid, a primary arylamine and a dihydroxyanthraquinone. It is a conjugate acid of a nuclear fast red(1-)."}]