2-AZETIDINONE, 3-BENZYL-3-ETHYL- 3-Benzil-3-etil-2-azetidinone [Italian] 3-Benzyl-3-ethyl-2-azetidinone 4-21-00-03694 (Beilstein Handbook Reference) 73855-95-5 BRN 0136191 L 1735