LXN
  -OEChem-04262419543D

 12 12  0     0  0  0  0  0  0999 V2000
    0.9560   -2.3550    0.0010 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.4010   -1.2760    0.0010 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.1900    0.0000    0.0010 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.3980    0.0000   -0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.4010    1.2760    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.9560    2.3550   -0.0010 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.9450    1.1840    0.0010 N   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5710   -0.0000    0.0010 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.7860   -0.0000    0.0010 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.9450   -1.1840   -0.0040 N   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4740   -1.9970   -0.0070 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4740    1.9970    0.0010 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

$$$$
