1-Benzyl-2,2,6,6-tetramethyl-4-hydroxypiperidine 1-Benzyl-2,2,6,6-tetramethylpiperidin-4-ol 4-Piperidinol, 2,2,6,6-tetramethyl-1-(phenylmethyl)- 52185-71-4 EINECS 257-718-4