trisodium 5-[[3-[(2-bromo-1-oxoallyl)amino]benzoyl]amino]-3-[[5-[(2-bromo-1-oxoallyl)amino]-2-sulphonatophenyl]azo]-4-hydroxynaphthalene-2,7-disulphonate

2,7-Naphthalenedisulfonic acid, 5-3-(2-bromo-1-oxo-2-propenyl)aminobenzoylamino-3-5-(2-bromo-1-oxo-2-propenyl)amino-2-sulfophenylazo-4-hydroxy-, trisodium salt

5-[3-(2-Bromo-1-oxo-2-propenylamino)benzoylamino]-3-[5-(2-bromo-1-oxo-2-propenylamino)-2-(sodiosulfo)phenylazo]-4-hydroxy-2,7-naphthalenedisulfonic acid disodium salt