ODF
  -OEChem-11012421183D

 13 13  0     0  0  0  0  0  0999 V2000
   -2.7390    0.2400   -0.0020 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5420    0.0250   -0.0020 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.6830    1.0610    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    0.6470    0.8420    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.4240    1.7800    0.0020 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0970   -1.2450    0.0020 N   0  0  0  0  0  0  0  0  0  0  0  0
    0.2490   -1.5130    0.0020 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.1340   -0.4920   -0.0020 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.4740   -0.7380   -0.0020 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0230    1.9690    0.0020 H   0  0  0  0  0  0  0  0  0  0  0  0
    0.5990   -2.5350    0.0060 H   0  0  0  0  0  0  0  0  0  0  0  0
    2.7010   -1.6780   -0.0030 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7340   -1.9770    0.0040 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

$$$$