1,2-Ethylene sulfite 1,3,2-Dioxathiolane, 2-oxide 3741-38-6 AI3-18461 Cyclic ethylene sulfite EINECS 223-131-7 Ethylene glycol cyclic sulfite Ethylene glycol, cyclic sulfite (8CI) Ethylene sulfite Ethylene sulphite Glycol sulfite Glycolsulfite NSC 3225 Sulfurous acid, cyclic ester with ethylene glycol