72894-18-9 4-Amino-6-[(4-aminophenyl)azo]-3-[[4-[[4-[(2,4-diaminophenyl)azo]phenyl]amino]-3-sulfophenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt
72894-25-8 4-Hydroxy-3-(p-nitrophenylazo)-5-[2,4-dihydroxy-3,5-bis(p-nitrophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid disodium salt