[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][=C][C][=Branch1][S][=C][Branch1][N][C][=Branch1][Branch2][=C][Ring1][=Branch1][C][Ring1][N][=O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a dihydroxyanthraquinone that is 1,2-dihydroxyanthraquinone compound carrying an additional sulfo substituent at the 3-position. The monosodium salt is the biological stain 'alizarin red S'. It has a role as a histological dye. It is a dihydroxyanthraquinone and an organosulfonic acid. It is a conjugate acid of a 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate."}]