2-[2-[2-CHLORO-3-[(1,3-DIHYDRO-3,3-DIMETHYL-1-PROPYL-2H-INDOL-2-YLIDENE)ETHYLIDENE]-1-CYCLOHEXEN-1-YL]ETHENYL]-3,3-DIMETHYL-1-PROPYLINDOLIUM IODIDE [ 207399-07-3 ]