1,5-diethyl-1,2,3,6-tetrahydropyridine InChI=1/C9H17N/c1-3-9-6-5-7-10(4-2)8-9/h6H,3-5,7-8H2,1-2H pyridine, 1,3-diethyl-1,2,5,6-tetrahydro-