2-[2-(2,3-diphenyl-5,6-dihydro-pyrrolo[2,1-b]thiazol-7-yl)-vinyl]-1-ethyl-quinolinium; iodide
2,3-diphenyl-7-[2-(1,3,3-trimethyl-1,3-dihydro-indol-2-ylidene)-ethylidene]-6,7-dihydro-5H-pyrrolo[2,1-b]thiazolium; iodide
2-[2-(2,3-diphenyl-5,6-dihydro-pyrrolo[2,1-b]thiazol-7-yl)-vinyl]-3-ethyl-benzothiazolium; iodide
2-[2-(2,3-diphenyl-5,6-dihydro-pyrrolo[2,1-b]thiazol-7-yl)-vinyl]-3-methyl-benzooxazolium; iodide
2-(2,3-diphenyl-5,6-dihydro-pyrrolo[2,1-b]thiazol-7-yl)-1-ethyl-6-methyl-quinolinium; iodide