1,2-Propanediol sulfite 1,2-Propanediol, cyclic sulfite (8CI) 1,2-Propylene glycol sulfite 1,3,2-Dioxathiolane, 4-methyl-, 2-oxide 1469-73-4 AI3-22919 Cyclic propylene sulfite NSC 44145 NSC 525703 Propylene sulfite Propylene sulfite (C3H6O2)SO SULFUROUS ACID, CYCLIC ESTER with 1,2-PROPANEDIOL Sulfurous acid, cyclic propylene ester