116196-85-1 2H,2'H-4,4'-Bithiopyranium, octahydro-1,1'-dimethyl-, bis(methanesulfonate) 4,4'-Bi-2H-thiopyranium, octahydro-1,1'-dimethyl-, dimethanesulfonate (9CI) Octahydro-1,1'-dimethyl-2H,2'H-4,4'-bithiopyranium bis(methanesulfonate)