InChI=1/C16H16N6O4/c1-7-2-4-8(5-3-7)18-16-20-12-11(14(25)22-16)9(6-10(23)19-12)13(24)21-15(17)26/h2-5,9H,6H2,1H3,(H3,17,21,24,26)(H3,18,19,20,22,23,25)/t9-/m0/s1/f/h18-19,21-22H,17H2 3921E69F4228493D