7-[4-(2,3-Dibromopropionylamino)-2-ureidophenylazo]naphthalene-1,3-disulfonic acid disodium salt

7-[4-(2,3-Dibromopropionylamino)-2-ureidophenylazo]-1,3-naphthalenedisulfonic acid disodium salt

disodium 7-[[2-[(aminocarbonyl)amino]-4-[(2,3-dibromo-1-oxopropyl)amino]phenyl]azo]naphthalene-1,3-disulphonate