1,2-Ethylene sulfite 1,3,2-Dioxathiolane, 2-oxide 3741-38-6 Cyclic ethylene sulfite Ethylene glycol cyclic sulfite Ethylene glycol, cyclic sulfite Ethylene sulfite Glycol sulfite Glycolsulfite NSC 3225 NSC3225 Sulfurous acid, cyclic ester with ethylene glycol WLN: T5OSOTJ BO