1955-45-9 2-Oxetanone, 3,3-dimethyl- 3,3-Dimethyl-2-oxetanone 3,3-Dimethyl-2-oxethanone 3,3-Dimethyl-beta-propiolactone 45432-82-4 5-17-09-00032 (Beilstein Handbook Reference) BRN 1280648 CCRIS 524 Dimethyl propiolactone HSDB 4117 NCI-C04126 PIVALOLACTONE Pivalic acid lactone Propanoic acid, 3-hydroxy-2,2-dimethyl-, beta-lactone alpha,alpha-Dimethyl-beta-propiolactone