InChI=1/C16H20N4O/c21-16(15-6-9-18-19-15)17-8-3-10-20-11-7-13-4-1-2-5-14(13)12-20/h1-2,4-6,9H,3,7-8,10-12H2,(H,17,21)(H,18,19)/p+1/fC16H21N4O/h17-18,20H/q+1 95FCA1849F7A03B8