InChI=1S/C13H20N2.C4H4O4/c1-2-5-11(6-3-1)13-12-7-4-9-15(12)10-8-14-13;5-3(6)1-2-4(7)8/h4,7,9,11,13-14H,1-3,5-6,8,10H2;1-2H,(H,5,6)(H,7,8)