The molecule is a C3 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 organic iodide salt. It contains a C3-indocyanine cation.
(2E)-1-ethyl-2-[(E)-3-(1-ethyl-3,3-dimethylindol-1-ium-2-yl)prop-2-enylidene]-3,3-dimethylindole;iodide