T 2240 (OTTO) Trimethyl sulphoxonium iodide, 98% Cas 1774-47-6 - used as a methylene-transfer reagent in synthetic chemistry. T 2240 (OTTO) Trimethyl sulphoxonium iodide, 98% Cas 1774-47-6 - used to prepare ylide, which reacts with carbonyl compounds to get epoxides. T 2240 (OTTO) Trimethyl sulphoxonium iodide, 98% Cas 1774-47-6 - used to generate dimethyloxosulfonium methylide by reaction with sodium hydride. T 2240 (OTTO) Trimethyl sulphoxonium iodide, 98% Cas 1774-47-6 - used as a methylene-transfer reagent, and is used to prepare epoxides.