1,3-Dithiolan-2-imine, 4-methyl-, hydrochloride 1003-39-0 4-Methyl-1,3-dithiolan-2-imine hydrochloride 4-Methyl-2-imino-1,3-dithiolane hydrochloride 4-Methyl1,3-dithiolan-2-iminium chloride EINECS 213-708-1