1-piperidinepropanoic acid, 3-methyl-, ethyl ester InChI=1/C11H21NO2/c1-3-14-11(13)6-8-12-7-4-5-10(2)9-12/h10H,3-9H2,1-2H ethyl 3-(3-methylpiperidin-1-yl)propanoate