FEO
  -OEChem-05172420563D

  3  2  0     0  0  0  0  0  0999 V2000
    0.1330    0.0000   -1.4370 Fe  0  0  0  0  0  0  0  0  0  0  0  0
    0.1330    0.0000    1.4370 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   -0.9330    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
  1  3  1  0  0  0  0
  2  3  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
O([Fe])[Fe]

> <OPENEYE_INCHI>
InChI=1S/2Fe.O

> <OPENEYE_INCHIKEY>
NPMYUMBHPJGBFA-UHFFFAOYSA-N

> <FORMULA>
Fe2O

$$$$
