4,7-Methanoisoindolinium, 3a,7a-dihydro-2-(2-(diethylmethylammonio)ethyl)-2-methyl-, diiodide 4-Diethylmethylammoniumethyl-4-methyl-4-azoniumtricyclo(5.2.1.0(sup 2,6))decene-8 diiodide 74051-64-2