1,2-Epoxypropane 1,3-EPOXYPROPANE 1,3-Propylene oxide 503-30-0 AI3-52868 CCRIS 4707 Cyclooxabutane EINECS 207-964-3 HSDB 5492 NSC 30086 Oxacyclobutane Oxetan Oxetane Propane, 1,3-epoxy- Trimethylene oxide Trimethylene oxide (8CI) Trimethylenoxid [German] alpha,gamma-Propane oxide