HPA
  -OEChem-04192423343D

 14 15  0     0  0  0  0  0  0999 V2000
   26.0780   89.9320   73.2540 N   0  0  0  0  0  0  0  0  0  0  0  0
   25.0670   89.0420   73.0050 C   0  0  0  0  0  0  0  0  0  0  0  0
   23.7800   89.4020   73.0680 N   0  0  0  0  0  0  0  0  0  0  0  0
   23.6090   90.7390   73.4000 C   0  0  0  0  0  0  0  0  0  0  0  0
   24.5820   91.6710   73.6570 C   0  0  0  0  0  0  0  0  0  0  0  0
   25.9360   91.2960   73.5930 C   0  0  0  0  0  0  0  0  0  0  0  0
   26.9190   92.0350   73.7880 O   0  0  0  0  0  0  0  0  0  0  0  0
   24.0230   92.8760   73.9570 N   0  0  0  0  0  0  0  0  0  0  0  0
   22.6720   92.6850   73.8780 C   0  0  0  0  0  0  0  0  0  0  0  0
   22.3800   91.3870   73.5340 N   0  0  0  0  0  0  0  0  0  0  0  0
   27.0180   89.5450   73.1800 H   0  0  0  0  0  0  0  0  0  0  0  0
   25.2980   87.9950   72.7430 H   0  0  0  0  0  0  0  0  0  0  0  0
   24.5120   93.7390   74.1910 H   0  0  0  0  0  0  0  0  0  0  0  0
   21.9200   93.4700   74.0660 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

$$$$