874617-88-6 2,7-Naphthalenedisulfonic acid,3-hydroxy-4-[[4-[(2-sulfophenyl)azo]-1-naphthalenyl]azo]-, trisodium salt
874617-97-7 Benzenesulfonic acid,2-[[2-(acetylamino)-4-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo]-5-methoxyphenyl]azo]-, disodium salt