InChI=1/C16H16N4/c1-11-15(19-10-18-11)16-17-7-8-20(16)14-6-5-12-3-2-4-13(12)9-14/h5-10H,2-4H2,1H3,(H,18,19)/f/h19H 2DAF57EE2D6A427A