?????? 4B ??????? ??? disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate Direct chestnut brown N DIRECT BLACK 22 Direct Fast Violet BK Direct Blending Navy Blue D-R C.I.Direct Yellow 50 Direct Grey D Direct Fast Brown S-BR Direct Bordeaux BE C.I.Direct Green 1 Direct Scarlet 4BE Direct Red 31 Direct Red 75 tetrasodium salt Bilirubin C.I.Direct Blue 151