The molecule is the cationic form of a C3 cyanine dye having 3-ethyl-1,3-benzoxazol-2(3H)-yl units at each end. It has a role as a fluorochrome. It is a member of 1,3-benzoxazoles, a cyanine dye and a benzoxazolium ion.
(2E)-3-ethyl-2-[(E)-3-(3-ethyl-1,3-benzoxazol-3-ium-2-yl)prop-2-enylidene]-1,3-benzoxazole