LXN
  -OEChem-04262420163D

 12 12  0     0  0  0  0  0  0999 V2000
   15.8120   11.4520   23.3810 O   0  0  0  0  0  0  0  0  0  0  0  0
   16.0570   11.6970   22.2020 C   0  0  0  0  0  0  0  0  0  0  0  0
   15.6470   10.7950   21.2140 C   0  0  0  0  0  0  0  0  0  0  0  0
   15.0600    9.7620   21.5250 O   0  0  0  0  0  0  0  0  0  0  0  0
   15.9040   11.0580   19.8690 C   0  0  0  0  0  0  0  0  0  0  0  0
   15.5360   10.2650   19.0030 O   0  0  0  0  0  0  0  0  0  0  0  0
   16.5920   12.2320   19.4980 N   0  0  0  0  0  0  0  0  0  0  0  0
   17.0140   13.1340   20.4880 C   0  0  0  0  0  0  0  0  0  0  0  0
   17.6100   14.1530   20.1500 O   0  0  0  0  0  0  0  0  0  0  0  0
   16.7450   12.8840   21.8500 N   0  0  0  0  0  0  0  0  0  0  0  0
   17.0350   13.5330   22.5540 H   0  0  0  0  0  0  0  0  0  0  0  0
   16.7780   12.4210   18.5340 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0  0  0  0
  2  3  1  0  0  0  0
  2 10  1  0  0  0  0
  3  4  2  0  0  0  0
  3  5  1  0  0  0  0
  5  6  2  0  0  0  0
  5  7  1  0  0  0  0
  7  8  1  0  0  0  0
  8  9  2  0  0  0  0
  8 10  1  0  0  0  0
 10 11  1  0  0  0  0
  7 12  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
C1(=O)C(=O)NC(=O)NC1=O

> <OPENEYE_INCHI>
InChI=1S/C4H2N2O4/c7-1-2(8)5-4(10)6-3(1)9/h(H2,5,6,8,9,10)

> <OPENEYE_INCHIKEY>
HIMXGTXNXJYFGB-UHFFFAOYSA-N

> <FORMULA>
C4H2N2O4

$$$$