6358-73-2

C.I.35415 Direct Grey B Direct Black 100 C.I.Direct Black 100 C.I.Direct Black 100:C.I.35415 3,3'-[[1,1'-Biphenyl]-4,4'-diylbis(azo)]bis[4-hydroxy-5-[(2-hydroxy-1-naphthalenyl)azo]naphthalene-2,7-disulfonic acid disodium] salt 2,7-Naphthalenedisulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4-hydroxy-5-((2-hydroxy-1-naphthalenyl)azo)-, tetrasodium salt