6717-34-6

C.I.34145 Direct Fast Blue FR Diazol Light Blue B C.I. Direct blue 72 Direct Fast Blue FRL C.I.Direct Blue 72(34145) 6'-Amino-1'-hydroxy-4-[(4-phenylazo-6-sodiosulfo-1-naphthalenyl)azo][1,2'-azobisnaphthalene]-3',6-disulfonic acid disodium salt