SMILES: CC1=CC(=C(C=C1N=NC2=C3C(=CC(=C2)S(=O)(=O)O)C=C(C=C3O)S(=O)(=O)O)OC)N=NC4=C(C=C5C=C(C=CC5=C4O)NC6=CC=CC=C6)S(=O)(=O)O
Description: The molecule is a naphthalenesulfonic acid that is the free acid form of the dye Sirius red F3B (the trisodium salt). It has a role as a fluorochrome and a histological dye. It is a member of naphthols, a member of azobenzenes, a bis(azo) compound, an aminonaphthalenesulfonic acid, a secondary amino compound and an aromatic ether. It is a conjugate acid of a Durazol blue 4R(3-).