1,1'-DIETHYL-3-ETHYL-3'(SULFOBUTYL)-5,5'-DICYANO-BENZIMIDOTRIMETHINECYANINE-BETAINE

1,3-DIETHYL-2-(3-(1-ETHYL-3-W-SULFOBUTYL-6-CYANO-1,3-BENZIMIDAZOLIN-2-YLIDEN)-PROP-1-EN--YL)-6-CYANO-1,3-BENZIMIDAZOLIUM-BETAINE