1-Naphthalenesulfonic acid, 4-[[2,4-dihydroxy-5-[(7-sulfo- 1-naphthalenyl)azo]phenyl]azo]-, disodium salt
CAS No. 75627-16-6
1-Naphthalenesulfonic acid, 4-[[2,4-dihydroxy-5-[(7-sulfo- 1-naphthalenyl)azo]phenyl]azo]-, disodium salt