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• 1,2,2,6,6-Pentamethyl-4-Piperidinol

• N-butyl-2,2,6,6-tetramethyl-4-Piperidinamine

• 4-Amino-2,2,6,6-tetramethylpiperidine

• 4-Hydroxy-2,2,6,6-Tetramethyl-piperidin-1-Oxyl

• 2,2,6,6-Tetramethyl-4-piperidinol

• 2,2,6,6-Tetramethyl-4 piperidone