FS1
  -OEChem-05172421163D

  2  1  0     0  0  0  0  0  0999 V2000
   13.8060   -0.3800    2.5830 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   13.7960   -1.5290    4.6380 S   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
S=[Fe]

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

> <OPENEYE_INCHIKEY>
MBMLMWLHJBBADN-UHFFFAOYSA-N

> <FORMULA>
FeS

$$$$