n-Methyl-triacetonamino alocohol 4-hydroxy-(1,2,2,6,6-pentamethyl-piperidinyl, N-Methyltriacetonaminoalc.(1,2,2,6,6-Pentamethylpiperidinol), 1.2.2.6.6-pentamethyl-4-piperidinol, N-Methyltriacetonaminoalc.(1,2,2,6,6-Pentamethylpiperidinol), 1,2,2,6,6-Pentamethyl-4-piperidinol