8NX
  -OEChem-05102419293D

 17 18  0     0  0  0  0  0  0999 V2000
   -2.7530    0.5800    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
   -2.7300   -0.7640    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -3.7810   -1.3750    0.0010 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5710   -1.4510   -0.0010 N   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3620   -0.7740   -0.0010 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3710    0.6150   -0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.6080    1.2950   -0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.6420    2.5120   -0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.9520    1.0100    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.6970   -0.1120   -0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.9160   -1.1620   -0.0010 N   0  0  0  0  0  0  0  0  0  0  0  0
    3.1770   -0.1520    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0
    3.8140    0.8860    0.0010 O   0  0  0  0  0  0  0  0  0  0  0  0
    3.7570   -1.2230   -0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
   -3.6050    1.0430   -0.0040 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5840   -2.4210   -0.0010 H   0  0  0  0  0  0  0  0  0  0  0  0
    1.2820    1.9220    0.0000 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
  2  3  2  0  0  0  0
  2  4  1  0  0  0  0
  4  5  1  0  0  0  0
  5  6  2  0  0  0  0
  5 11  1  0  0  0  0
  6  7  1  0  0  0  0
  6  9  1  0  0  0  0
  7  8  2  0  0  0  0
  9 10  1  0  0  0  0
 10 11  2  0  0  0  0
 10 12  1  0  0  0  0
 12 13  2  0  0  0  0
 12 14  1  0  0  0  0
  1 15  1  0  0  0  0
  4 16  1  0  0  0  0
  9 17  1  0  0  0  0
M  CHG  2  12   1  14  -1
M  END
> <OPENEYE_ISO_SMILES>
c12c([nH]c(=O)[nH]c1=O)nc([nH]2)[N+](=O)[O-]

> <OPENEYE_INCHI>
InChI=1S/C5H3N5O4/c11-3-1-2(8-5(12)9-3)7-4(6-1)10(13)14/h(H3,6,7,8,9,11,12)

> <OPENEYE_INCHIKEY>
LXDVSSPKQAHSGS-UHFFFAOYSA-N

> <FORMULA>
C5H3N5O4

$$$$
