InChI=1/C21H20N2O6/c1-22(2)20(25)13-4-3-5-16(8-13)29-21(26)14-9-19(24)23(11-14)15-6-7-17-18(10-15)28-12-27-17/h3-8,10,14H,9,11-12H2,1-2H3/t14-/m0/s1 C3D8FF180A58045E