124939-78-2 2H-Thiopyranium, 4-(9,10-dihydro-4H-benzo(4,5)cyclohepta(1,2-b)thien-4-ylidene)tetrahydro-1-methyl-, iodide 2H-Thiopyranium, 4-(9,10-dihydro-4H-benzo(4,5)cyclohepta(1,2-b)thien-4-ylidene)tetrahydro-1-methyl-,iodide