2,2,6,6-tetramethyl-1-oxidopiperidin-1-ium

2,2,6,6-四甲基-4-哌啶酮肟盐酸盐

2,2,6,6-四甲基-1-亚硝基-4-哌啶酮

2-[(2,2,6,6-tetramethylpiperidin-4-yl)amino]ethanol

2,2,5,5-tetramethylpyrrolidin-3-one