CAS: 210690-26-9 Molecular Formula: C15H20N2O3 Molecular Weight (g/mol): 276.33 Synonym: trans- 8-(2-Phenylethyl)-1-oxa-3,8-diazaspiro[4.5]decan-2-one 8-Oxide,(5α,8β)-8-(2-Phenylethyl)-1-oxa-3,8-diazaspiro[4.5]decan-2-one 8-Oxide; SMILES: [O-][N+]1(CCc2ccccc2)CCC3(CC1)CNC(=O)O3