874618-13-0 2,7-Naphthalenedisulfonic acid,1-[[5-(acetylamino)-2-methoxy-4-[(3-sulfophenyl)azo]phenyl]azo]-3-amino-4-hydroxy-, 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
874617-93-3 2,7-Naphthalenedisulfonic acid,1-[[5-(acetylamino)-2-methoxy-4-[(2-sulfophenyl)azo]phenyl]azo]-3-amino-4-hydroxy-, trisodium salt