InChI=1/C5H8N2O/c6-5(8)4-2-1-3-7-4/h1-2,4,7H,3H2,(H2,6,8)/p+1/t4-/m0/s1/fC5H9N2O/h7H,6H2/q+1 C655A25261F9E7E3