1,2-Oxathiolane, 5-methyl-, 2,2-dioxide 1,3-Butanesultone 1-Butanesulfonic acid, 3-hydroxy-, gamma-sultone (7CI) 3289-23-4 4-19-00-00041 (Beilstein Handbook Reference) 5-Methyl-1,2-oxathiolane 2,2-dioxide BRN 0110574 gamma-Butane sultone