1-(2-Hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine, succinic acid polymer 182071-76-7 70198-29-7 71990-59-5 76633-20-0 Butanedioic acid, polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol