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C.I.51305 Direct Blue 190 C.I. Direct Blue 190 Diazol Light Pure Blue FFB Direct blue 190 (C.I. 51305) C.I.Direct Blue 190:C.I.51305 6,13-Dichloro-3,10-bis[(4-chlorophenyl)amino]triphenodioxazine-2,9-disulfonic acid disodium salt disodium,6,13-dichloro-3,10-bis(4-chloroanilino)-[1,4]benzoxazino[2,3-b]phenoxazine-2,9-disulfonate 2,9-Triphenodioxazinedisulfonic acid, 6,13- dichloro-3,10-bis[(4-chlorophenyl)amino]-, disodium salt 2,9-triphenodioxazinedisulfonic acid, 6,13-dichloro-3,10-bis[(4-chlorophenyl)am 9-triphenodioxazinedisulfonic acid,6,13-dichloro-3,10-bis[(4-chlorophenyl)amino]- disodium salt 2,9-Triphenodioxazinedisulfonic acid,6,13-dichloro-3,10-bis[(4-chlorophenyl)amino]-,disodium salt