The molecule is a member of the class of benzoisoquinolines that is 6-amino-1,3-dioxo-5-sulfobenzo[de]isoquinoline substituted at position 2 by a 3-carboxy-4-hydroxyphenyl group. The disodium salt is the histological dye 'Chrome fast yellow 8GL'. It has a role as a fluorochrome and a histological dye. It is an arenesulfonic acid, a primary arylamine, a benzoisoquinoline, a monohydroxybenzoic acid and a dicarboximide. It is a conjugate acid of a Chrome fast yellow 8GL(2-).
5-(6-amino-1,3-dioxo-5-sulfobenzo[de]isoquinolin-2-yl)-2-hydroxybenzoic acid