1,3-Propanesulfone 13153-11-2 5-17-01-00015 (Beilstein Handbook Reference) BRN 0104565 NSC 244321 Propanesulfone Propylthiocyclane sulfoxide TRIMETHYLENE SULFOXIDE Thietane 1-oxide Thietane S-oxide Thietane oxide Thietane, 1-oxide (9CI)