4-(9,10-dioxo-9,10-dihydro-[1]anthrylazo)-3-hydroxy-[2]naphthoic acid anilide, 2H-Thiopyranium,4-(9,10-dihydro-4H-benzo(4,5)cyclohepta(1,2-b)thien-4-ylidene)tetrahydro-1-methyl-,iodide, 4-(9,10-Dioxo-9,10-dihydro-[1]anthrylazo)-3-hydroxy-[2]naphthoesaeure-anilid, 4-[(9,10-dihydro-9,10-dioxo-1-anthryl)azo]-3-hydroxy-N-phenylnaphthalene-2-carboxamide, 4-(9,10-dihydro-4H-benzo<4,5>cyclohepta<1,2-b>thiophene-4-ylidene)-1-methyltetrahydrothiopyranium iodide,