InChI=1/C8H6N4O2/c13-7-10-6(11-8(14)12-7)5-1-3-9-4-2-5/h1-4H,(H2,10,11,12,13,14)/p+1/fC8H7N4O2/h10-12H/q+1 FC61809BD2C128FF