1-(N,N-Diethylglycyl)-4-phenyl-2,2,6,6-tetramethylpiperidine 5-20-06-00482 (Beilstein Handbook Reference) 53725-56-7 BRN 1654304 Piperidine, 1-(N,N-diethylglycyl)-4-phenyl-2,2,6,6-tetramethyl-