1-21-00-00273 (Beilstein Handbook Reference) 2,2,6,6-Tetramethyl-4-piperidone oxime 4-Piperidinone, 2,2,6,6-tetramethyl-, oxime 4-Piperidone, 2,2,6,6-tetramethyl-, oxime 4168-79-0 BRN 0122417 EINECS 224-026-9 EX 4826 Triacetonamine oxime