BENZOTHIAZOLIUM, 3-ETHYL-2-[2-[5-[2-(3-ETHYL-2(3H)-BENZOTHIAZOLYLIDENE)ETHYLIDENE]-5,6-DIHYDRO-2H-PYRAN-3-YL]ETHENYL]-, IODIDE;BENZOTHIAZOLIUM, 3-ETHYL-2-[2-[5-[(3-ETHYL-2(3H)-BENZOTHIAZOLYLIDENE)ETHYLIDENE]-5,6-DIHYDRO-2H-PYRAN-3-YL]ETHENYL]-, SALT WITH