ODF
  -OEChem-05102419543D

 13 13  0     0  0  0  0  0  0999 V2000
   28.1810  -11.4850   43.2860 O   0  0  0  0  0  0  0  0  0  0  0  0
   27.3860  -10.8560   42.6810 C   0  0  0  0  0  0  0  0  0  0  0  0
   27.7230   -9.7060   41.9980 N   0  0  0  0  0  0  0  0  0  0  0  0
   26.8520   -8.8870   41.3320 C   0  0  0  0  0  0  0  0  0  0  0  0
   27.1930   -7.8470   40.8130 O   0  0  0  0  0  0  0  0  0  0  0  0
   26.1050  -11.3170   42.5260 N   0  0  0  0  0  0  0  0  0  0  0  0
   25.0840  -10.5350   41.8160 C   0  0  0  0  0  0  0  0  0  0  0  0
   25.5010   -9.4090   41.1920 C   0  0  0  0  0  0  0  0  0  0  0  0
   24.5920   -8.6260   40.5500 O   0  0  0  0  0  0  0  0  0  0  0  0
   28.6890   -9.4480   41.9890 H   0  0  0  0  0  0  0  0  0  0  0  0
   24.0490  -10.8440   41.7930 H   0  0  0  0  0  0  0  0  0  0  0  0
   25.0160   -7.8320   40.2450 H   0  0  0  0  0  0  0  0  0  0  0  0
   25.8590  -12.2090   42.9060 H   0  0  0  0  0  0  0  0  0  0  0  0
  8  9  1  0  0  0  0
  4  5  2  0  0  0  0
  4  8  1  0  0  0  0
  7  8  2  0  0  0  0
  3  4  1  0  0  0  0
  6  7  1  0  0  0  0
  2  3  1  0  0  0  0
  2  6  1  0  0  0  0
  1  2  2  0  0  0  0
  3 10  1  0  0  0  0
  7 11  1  0  0  0  0
  9 12  1  0  0  0  0
  6 13  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
c1c(c(=O)[nH]c(=O)[nH]1)O

> <OPENEYE_INCHI>
InChI=1S/C4H4N2O3/c7-2-1-5-4(9)6-3(2)8/h1,7H,(H2,5,6,8,9)

> <OPENEYE_INCHIKEY>
OFJNVANOCZHTMW-UHFFFAOYSA-N

> <FORMULA>
C4H4N2O3

$$$$