InChI=1/C19H20N6O2/c20-12-14-3-5-16(6-4-14)18(26)23-24-19(27)22-13-15-7-8-21-17(11-15)25-9-1-2-10-25/h3-8,11H,1-2,9-10,13H2,(H,23,26)(H2,22,24,27)/p+1/fC19H21N6O2/h21-24H/q+1 EC6B8F2193E57CA3