1,3-bis-(3-ethyl-benzothiazol-2-yl)-2-[2-(3-ethyl-naphtho[2,1-
d]thiazolium-2-yl)-vinyl]-trimethinium; diiodide;3-ethyl-2-[4-(3-ethyl-benzothiazolium-2-yl)-3-(3-ethyl-3
H-benzothiazol-2-ylidenemethyl)-buta-1,3-dienyl]-naphtho[2,1-
d]thiazolium; diiodide;3.3'-Diaethyl-9-<2-(3-aethyl-1-thia-3-azonia-cyclopenta
naphthyl-(2))-vinyl-thiacarbocyanin