The molecule is the cationic form of a C7 cyanine dye having 1-ethyl-3,3-dimethylindoleinine units at each end. It has a role as a fluorochrome. It is a cyanine dye and an indolium ion.
(2Z)-1-ethyl-2-[(2E,4E,6E)-7-(1-ethyl-3,3-dimethylindol-1-ium-2-yl)hepta-2,4,6-trienylidene]-3,3-dimethylindole