The molecule is a C5 cyanine dye having 1-ethyl-3,3-dimethylindoleinine units at each end. It has a role as a fluorochrome. It is an organic iodide salt and a Cy5 dye. It contains a C5-indocyanine cation.
(2Z)-1-ethyl-2-[(2E,4Z)-5-(1-ethyl-3,3-dimethylindol-1-ium-2-yl)penta-2,4-dienylidene]-3,3-dimethylindole;iodide