InChI=1S/2C13H16N2O.C4H4O4/c2*1-4-13-12(14-7-9-15(13)8-1)6-5-11-3-2-10-16-11;5-3(6)1-2-4(7)8/h2*1-4,8,10,12,14H,5-7,9H2;1-2H,(H,5,6)(H,7,8)