InChI=1S/C10H15N.C4H6O6/c1-9(11-2)8-10-6-4-3-5-7-10;5-1(3(7)8)2(6)4(9)10/h3-7,9,11H,8H2,1-2H3;1-2,5-6H,(H,7,8)(H,9,10)/t9-;1-,2-/m01/s1