HPA
  -OEChem-04192423153D

 14 15  0     0  0  0  0  0  0999 V2000
    0.2030    0.0000    1.9990 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.4920    0.0000    1.5740 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.8070    0.0000    0.3110 N   0  0  0  0  0  0  0  0  0  0  0  0
    0.8550    0.0000   -0.6440 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.4890   -0.0050   -0.2660 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8100    0.0000    1.1040 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.9720    0.0010    1.4750 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.2190    0.0000   -1.4350 N   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3350    0.0000   -2.4550 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.8840    0.0000   -1.9870 N   0  0  0  0  0  0  0  0  0  0  0  0
    0.0080    0.0000    2.9490 H   0  0  0  0  0  0  0  0  0  0  0  0
    2.2840    0.0000    2.3080 H   0  0  0  0  0  0  0  0  0  0  0  0
   -2.1860    0.0000   -1.5110 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.5970    0.0010   -3.5020 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  1  6  1  0  0  0  0
  1 11  1  0  0  0  0
  2  3  2  0  0  0  0
  2 12  1  0  0  0  0
  3  4  1  0  0  0  0
  4  5  2  0  0  0  0
  4 10  1  0  0  0  0
  5  6  1  0  0  0  0
  5  8  1  0  0  0  0
  6  7  2  0  0  0  0
  8  9  1  0  0  0  0
  8 13  1  0  0  0  0
  9 10  2  0  0  0  0
  9 14  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
c1[nH]c2c(=O)[nH]cnc2n1

> <OPENEYE_INCHI>
InChI=1S/C5H4N4O/c10-5-3-4(7-1-6-3)8-2-9-5/h1-2H,(H2,6,7,8,9,10)

> <OPENEYE_INCHIKEY>
FDGQSTZJBFJUBT-UHFFFAOYSA-N

> <FORMULA>
C5H4N4O

$$$$