The molecule is a cationic C3 cyanine-type compound with 4-(dimethylamino)phenyl and 3-ethyl-1,3-benzothiazolium groups at either end. It has a role as a fluorochrome. It is a tertiary amine and a benzothiazolium ion.
4-[(1E,3E)-4-(3-ethyl-1,3-benzothiazol-3-ium-2-yl)buta-1,3-dienyl]-N,N-dimethylaniline