InChI=1/C5H9N5/c6-5(7)9-2-4-1-8-3-10-4/h1,3H,2H2,(H,8,10)(H4,6,7,9)/p+2/fC5H11N5/h8-10H,6-7H2/q+2 A691D15D65B8DC67