1-Naphthalenesulfonic acid, 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-, disodium salt 4247-14-7 Atlantic Brilliant Blue G Azoform Brilliant Blue G C.I. 24380 C.I. Direct Blue 4 C.I. Direct Blue 4, disodium salt Carbide Fast Brilliant Blue GC Chicago Blue B Erieform Blue G Formal Blue G NSC23348