1,3,2-Dioxathiane, 4-methyl, 2-oxide 1,3,2-Dioxathiane, 4-methyl-, 2-oxide 1,3-Butanediol, cyclic sulfite 1,3-Butylene sulphite 4-Methyltrimethylene sulfite 4426-51-1 FDA 0477 NSC-60195 NSC60195 WLN: T6OSOTJ BO D1