InChI=1/C21H19N5O4/c1-12-15-5-3-4-6-16(15)18(28)26(25-12)11-17(27)22-14-9-7-13(8-10-14)21(2)19(29)23-20(30)24-21/h3-10H,11H2,1-2H3,(H,22,27)(H2,23,24,29,30)/t21-/m0/s1/f/h22-24H E82AC36C334D7124