Disodium 3,3\'-[[1,1\'-biphenyl]-4,4\'-diylbis(azo)]
bis(4-aminonaphthalene-1-sulphonate) (C.I. Direct Red 28)
直接紅28
209-358-4
573-58-0
致癌性
Disodium 4-amino-3-[[4\'-[(2,4-diaminophenyl)azo][1,1\'-biphenyl]-4-yl]azo] -5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate (C.I. Direct Black 38)
直接黑38