1-(3-Oxo-2,2,4-trimethylvaleryl)piperidine 73790-84-8 NSC220114 Piperidine, 1-(2,2,4-trimethyl-1,3-dioxopentyl)- Piperidine, 1-(3-oxo-2,2,4-trimethylvaleryl)- WLN: T6NTJ AVY1&VX1&1&1