OXC
  -OEChem-05172420573D

 16 16  0     0  0  0  0  0  0999 V2000
   -0.1260   -0.2370   -1.8470 N   0  0  0  0  0  0  0  0  0  0  0  0
   -1.2620   -0.0620   -1.1580 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.3230   -0.3450   -1.6800 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.2550    0.4190    0.1010 N   0  0  0  0  0  0  0  0  0  0  0  0
    0.0420    0.7530    0.7110 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.2450    0.5340   -0.1070 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.0870    0.0450   -1.3550 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0680   -0.1420   -2.0470 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.1840   -0.0590    1.9720 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.7850   -0.0370    2.8990 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.1730   -0.7320    2.1480 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.1860   -0.5870   -2.7500 H   0  0  0  0  0  0  0  0  0  0  0  0
   -2.0830    0.5420    0.5920 H   0  0  0  0  0  0  0  0  0  0  0  0
    0.0170    1.8050    0.9960 H   0  0  0  0  0  0  0  0  0  0  0  0
    2.1280    0.7360    0.2390 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.6930   -0.5590    3.7080 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  1  7  1  0  0  0  0
  1 12  1  0  0  0  0
  2  3  2  0  0  0  0
  2  4  1  0  0  0  0
  4  5  1  0  0  0  0
  4 13  1  0  0  0  0
  5  6  1  0  0  0  0
  5  9  1  0  0  0  0
  5 14  1  0  0  0  0
  6  7  1  0  0  0  0
  6 15  1  0  0  0  0
  7  8  2  0  0  0  0
  9 10  1  0  0  0  0
  9 11  2  0  0  0  0
 10 16  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
C1(NC(=O)NC(=O)N1)C(=O)O

> <OPENEYE_INCHI>
InChI=1S/C4H5N3O4/c8-2(9)1-5-3(10)7-4(11)6-1/h1H,(H,8,9)(H3,5,6,7,10,11)

> <OPENEYE_INCHIKEY>
IRFZLMWJJPULRF-UHFFFAOYSA-N

> <FORMULA>
C4H5N3O4

$$$$