8NX
  -OEChem-05172421153D

 17 18  0     0  0  0  0  0  0999 V2000
   29.3840   27.2170   36.3510 N   0  0  0  0  0  0  0  0  0  0  0  0
   28.5680   27.0780   37.4550 C   0  0  0  0  0  0  0  0  0  0  0  0
   27.4540   27.5090   37.4810 O   0  0  0  0  0  0  0  0  0  0  0  0
   29.1110   26.3990   38.5540 N   0  0  0  0  0  0  0  0  0  0  0  0
   30.3770   26.0090   38.4360 C   0  0  0  0  0  0  0  0  0  0  0  0
   31.1960   26.0610   37.3140 C   0  0  0  0  0  0  0  0  0  0  0  0
   30.6740   26.7970   36.1840 C   0  0  0  0  0  0  0  0  0  0  0  0
   31.2650   26.9890   35.1100 O   0  0  0  0  0  0  0  0  0  0  0  0
   32.3640   25.4610   37.4920 N   0  0  0  0  0  0  0  0  0  0  0  0
   32.2920   25.0810   38.7310 C   0  0  0  0  0  0  0  0  0  0  0  0
   31.1300   25.3220   39.3770 N   0  0  0  0  0  0  0  0  0  0  0  0
   33.1650   24.3940   39.4790 N   0  3  0  0  0  0  0  0  0  0  0  0
   33.8780   23.4550   39.0490 O   0  0  0  0  0  0  0  0  0  0  0  0
   33.2590   24.6470   40.7160 O   0  5  0  0  0  0  0  0  0  0  0  0
   28.9770   27.6880   35.5680 H   0  0  0  0  0  0  0  0  0  0  0  0
   28.5770   26.2180   39.3800 H   0  0  0  0  0  0  0  0  0  0  0  0
   33.1100   25.3340   36.8390 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

$$$$