1718-33-8 2-Oxetanone, 3,3-bis(trifluoromethyl)- (9CI) 2-Oxetanone, 4,4-bis(trifluoromethyl)- 4,4-Bis(trifluoromethyl)-2-oxetanone 5-17-09-00031 (Beilstein Handbook Reference) BRN 1244209 NSC 202601 beta,beta-Bis(trifluoromethyl)-beta-propiolacetone