Synonyms: o,o'-dianisidine; 3,3'-Dimethoxy-1,1'-Biphenyl-4,4'-Diamine; 3,3'-dimethoxy-4,4'-diaminobiphenyl; 3,3'-dianisidine; 3,3'-dimethoxybenzidine; 4,4'-diamino-3,3'-dimethoxybiphenyl; 4,4'-diamino-3,3'-biphenyldiol dimethyl ether; acetamine diazo black rd; acetamine diazo navy rd; amacel developed navy sd; azoene fast blue base; azogene fast blue b; diacelliton fast grey g; diacel navy dc; diato blue base b; diazo fast blue b; dianisidine; Blue Base; blue base irga b; blue base nb; blue bn base; brentamine fast blue b base; cellitazol b; cellitazol bn; C.I. azoic diazo component 48; C.I. Disperse Black 6; DMOB; Fast Blue; fast blue b base; fast blue dsc base; hiltonil fast blue b base; kayaku blue b base; lake blue b base; meisei teryl diazo blue hr; mitsui blue b base; naphthanil blue b base; neutrosel navy bn; setacyl diazo navy r; spectrolene blue b;