InChI=1/C21H18N4O8/c1-11(26)14-7-16-17(33-10-32-16)8-15(14)22-18(27)9-24-19(28)21(2,23-20(24)29)12-3-5-13(6-4-12)25(30)31/h3-8H,9-10H2,1-2H3,(H,22,27)(H,23,29)/t21-/m1/s1/f/h22-23H 7725AF8D116A6D08