FSO
  -OEChem-04262420153D

 10 12  0     1  0  0  0  0  0999 V2000
   53.8740   30.0620   12.8770 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   53.3970   27.3970   12.9980 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   53.5470   30.9670   16.5020 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   51.5080   29.0510   14.7310 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   55.3410   28.4320   13.0430 S   0  0  0  0  0  0  0  0  0  0  0  0
   52.0440   29.0290   12.2100 S   0  3  1  0  0  0  0  0  0  0  0  0
   49.6200   30.6070   14.3060 S   0  5  0  0  0  0  0  0  0  0  0  0
   52.7700   27.2880   14.8690 O   0  0  0  0  0  0  0  0  0  0  0  0
   52.0210   29.5340   16.6420 O   0  0  0  0  0  0  0  0  0  0  0  0
   53.4820   30.7220   14.8110 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

$$$$