72749-91-8 Benzenesulfonic acid, (9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diiminobis(1,1-dimethylethyl)-, sodium salt
72749-86-1 5-[[2,4-Dihydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-3-[(4-nitrophenyl)azo]phenyl]azo]-4-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid disodium salt