Naphtho[2,1-d]thiazolium, 3-ethyl-2-[[3-[3-[3-[(3-ethylnaphtho[2,1-d]thiazol-2(3H)-ylidene)methyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]-1-propenyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]methyl]-, perchlorate