72379-58-9 5-Chloro-2-hydroxy-3-[[2-hydroxy-4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]benzenesulfonic acid sodium salt
72379-55-6 5-[[[7-[[4-[(3-Carboxy-4-hydroxyphenyl)azo]-3-sulfophenyl]azo]-8-hydroxy-3,6-disulfo-1-naphthalenyl]amino]sulfonyl]-2-hydroxybenzoic acid pentasodium salt