SF3
  -OEChem-06282419243D

  7  8  0     1  0  0  0  0  0999 V2000
    0.0060   -0.6140   -0.5050 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   -2.7230   -0.3890    0.7190 Fe  0  0  0  0  0  0  0  0  0  0  0  0
    0.5790    2.3180   -0.2470 Fe  0  0  0  0  0  0  0  0  0  0  0  0
    2.8810   -1.3570    0.3850 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   -1.9330   -1.5230   -0.9840 S   0  0  0  0  0  0  0  0  0  0  0  0
    1.7880    0.5180    0.0880 S   0  4  1  0  0  0  0  0  0  0  0  0
   -1.1510    1.0780    0.2850 S   0  4  1  0  0  0  0  0  0  0  0  0
  1  5  1  0  0  0  0
  1  6  1  0  0  0  0
  1  7  1  0  0  0  0
  2  5  1  0  0  0  0
  2  7  1  0  0  0  0
  3  6  1  0  0  0  0
  3  7  1  0  0  0  0
  4  6  1  0  0  0  0
M  RAD  2   6   2   7   2
M  END
> <OPENEYE_ISO_SMILES>
S1[Fe][S@@]2[Fe]1[S@@]([Fe]2)[Fe]

> <OPENEYE_INCHI>
InChI=1S/4Fe.3S

> <OPENEYE_INCHIKEY>
QQACTBFBZNWJMV-UHFFFAOYSA-N

> <FORMULA>
Fe4S3

$$$$
