Synonyms: 2-((E)-3-(5,5-DIMETHYL-3-[(E)-1-METHYL-3-(1,3,3-TRIMETHYL-1,3-DIHYDRO-2H-INDOL-2-YLIDENE)-1-PROPENYL]-2-CYCLOHEXEN-1-YLIDENE)-1-BUTENYL)-1,3,3-TRIMETHYL-3H-INDOLIUM PERCHLORATE;3H-INDOLIUM, 2-[3-[3-[3-(1,3-DIHYDRO-1,3,3-TRIMETHYL-2H-INDOL-2-YLIDENE)-1-METHYL-1-PROPENYL]-5,5-DIMETHYL-2-CYCLOHEXEN-1-YLIDENE]-1-BUTENYL]-1,3,3-TRIMETHYL-, PERCHLORATE