InChI=1/C19H20N4O4/c1-18(11-20,12-6-7-12)21-15(24)10-23-16(25)19(22-17(23)26)8-9-27-14-5-3-2-4-13(14)19/h2-5,12H,6-10H2,1H3,(H,21,24)(H,22,26)/t18-,19-/m0/s1/f/h21-22H CAA1A54ACA34C731