FSO
  -OEChem-04192423153D

 10 12  0     1  0  0  0  0  0999 V2000
   -1.5790    0.4680    0.6740 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   -0.8070   -1.5870   -0.8910 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   -0.0490    2.4410   -0.5920 Fe  0  0  0  0  0  0  0  0  0  0  0  0
    1.6380   -0.2180   -0.0870 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   -2.7310   -1.3030    0.1740 S   0  0  0  0  0  0  0  0  0  0  0  0
   -0.0210   -1.0370    1.1220 S   0  3  1  0  0  0  0  0  0  0  0  0
    3.6180   -0.6900    0.7240 S   0  5  0  0  0  0  0  0  0  0  0  0
    0.9940   -1.5000   -1.2060 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.4110    1.4950   -0.3830 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.3560    2.2230    0.6690 O   0  0  0  0  0  0  0  0  0  0  0  0
  1  5  1  0  0  0  0
  1  6  1  0  0  0  0
  1 10  1  0  0  0  0
  2  5  1  0  0  0  0
  2  6  1  0  0  0  0
  2  8  1  0  0  0  0
  3  9  1  0  0  0  0
  3 10  1  0  0  0  0
  4  6  1  0  0  0  0
  4  7  1  0  0  0  0
  4  8  1  0  0  0  0
  4  9  1  0  0  0  0
M  CHG  2   6   1   7  -1
M  END
> <OPENEYE_ISO_SMILES>
O1[Fe]O[Fe]2(O[Fe]3[S@@+]2[Fe]1S3)[S-]

> <OPENEYE_INCHI>
InChI=1S/4Fe.3O.3S/q;;;;;;;;-1;+1

> <OPENEYE_INCHIKEY>
JQPFOUXUGPAEOB-UHFFFAOYSA-N

> <FORMULA>
Fe4O3S3

$$$$