Synonyms: 1-Ethyl-2-[(1-ethyl-2(1H)-quinolylidene)methyl]quinoliniumbromide (6CI,7CI); Quinolinium,1-ethyl-2-[(1-ethyl-2(1H)-quinolinylidene)methyl]-, bromide (9CI); Quinolinium,1-ethyl-2-[(1-ethyl-2(1H)-quinolylidene)methyl]-, bromide (8CI); 2,2'-Cyaninebromide, 1,1'-diethyl- (8CI); 1,1'-Diethyl-2,2'-cyanine bromide;1-Ethyl-2-[(1-ethyl-2(1H)-quinolinylidene)methyl]quinolinium bromide;2,2'-Quinocyanine bromide; NK 1046; Pseudocyanine bromide; Pseudoisocyaninebromide