1-Naphthalenesulfonicacid,3-[[4'-[(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxy-,disodium salt (9CI);C.I. Direct Blue 151, disodium salt (8CI);Azine CopperBlue 2B;Azoform Blue FO;Chlorazol Copper Blue B;Diazo Fast Blue MP;Diazophenyl Blue B;Direct Blue CV;Indoxine DRB;Niagara Blue R;PontamineCopper Blue RRX;
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