72152-90-0 | 5-[[4-[[4-[(6-Amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-7-sulfo-1-naphthalenyl]azo]phenyl]azo]-2-hydroxybenzoic acid trisodium salt | 5-[[4-[[4-[(6-Amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-7-sulfo-1-naphthalenyl]azo]phenyl]azo]-2-hydroxybenzoic acid trisodium salt |