1H-Isoindolium, 4,5,6,7-tetrachloro-2,3-dihydro-2-methyl-2-(2-(trimethylammonio)ethyl)-, dichloride 303-92-4 4,5,6,7-Tetrachlor-2-(2-trimethylammonioethyl)-2-methylisoindolinium chlorid 4,5,6,7-Tetrachloro-2-(2-dimethylaminoethyl)-2-methylisoindolinum chloride