SMILES: C12=C(C(=C(C(=C1O)O)S(=O)(=O)O)O)C(=O)C3=C(C2=O)C(=C(C(=C3O)O)S(=O)(=O)O)O
Description: The molecule is a hexahydroxyanthraquinone that is 1,3,4,5,7,8-hexahydroxy-9,10-anthraquinone carrying two additional sulfo groups at positions 2 and 6. The disodium salt is the biological stain 'alizarin cyanin BBS'. It has a role as a histological dye. It is an organosulfonic acid and a hexahydroxyanthraquinone. It is a conjugate acid of a 1,3,4,5,7,8-hexahydroxy-9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonate.