The molecule is an organic sodium salt that is the disodium salt of 5-acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid. It has a role as a histological dye. It contains a 5-acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate.
disodium;5-acetamido-4-hydroxy-3-phenyldiazenylnaphthalene-2,7-disulfonate