NO2
  -OEChem-04192423353D

  3  2  0     0  0  0  0  0  0999 V2000
   25.0850   34.9820   31.9140 N   0  0  0  0  0  0  0  0  0  0  0  0
   26.1130   35.8920   32.1900 O   0  0  0  0  0  0  0  0  0  0  0  0
   23.7200   35.3670   31.7110 O   0  5  0  0  0  0  0  0  0  0  0  0
  1  2  2  0  0  0  0
  1  3  1  0  0  0  0
M  CHG  1   3  -1
M  END
> <OPENEYE_ISO_SMILES>
N(=O)[O-]

> <OPENEYE_INCHI>
InChI=1S/HNO2/c2-1-3/h(H,2,3)/p-1

> <OPENEYE_INCHIKEY>
IOVCWXUNBOPUCH-UHFFFAOYSA-M

> <FORMULA>
NO2-

$$$$
