disodium 6-amino-5-[[4-[(2-bromo-1-oxoallyl)amino]-2-sulphonatophenyl]azo]-4-hydroxynaphthalene-2-sulphonate

2-Naphthalenesulfonic acid, 6-amino-5-4-(2-bromo-1-oxo-2-propenyl)amino-2-sulfophenylazo-4-hydroxy-, disodium salt

6-Amino-5-[4-(2-bromo-1-oxo-2-propenylamino)-2-(sodiosulfo)phenylazo]-4-hydroxy-2-naphthalenesulfonic acid sodium salt