InChI=1/C21H19N3O4/c1-24(2)9-11-28-21(26)17-15-12-6-3-4-7-13(12)19(25)16(15)18(23-20(17)22)14-8-5-10-27-14/h3-8,10H,9,11H2,1-2H3,(H2,22,23)/p+1/fC21H20N3O4/h24H,22H2/q+1 6C84E5A2C711C16D