2,2,6,6-tetramethyl-1-oxopiperidin-1-ium-4-ol

2,2,6,6-四甲基-4-(甲基磺氧基)-1-哌啶氧自由基

4-acetylamino-2,2,6,6-tetramethyl-1-piperidinium acetate

4-乙酰胺基-2,2,6,6-四甲基哌啶

tempamine