T2N
  -OEChem-11012420593D

  8  9  0     1  0  0  0  0  0999 V2000
   -1.9410    0.8640   -0.8800 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5790   -1.9190    0.1080 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.6540    0.6890    1.0230 S   0  3  1  0  0  0  0  0  0  0  0  0
    2.0950   -1.5030   -0.6470 S   0  0  0  0  0  0  0  0  0  0  0  0
   -2.6300   -0.4240    0.1340 Fe  0  0  0  0  0  0  0  0  0  0  0  0
   -0.6180    1.9250   -0.2760 Fe  0  0  0  0  0  0  0  0  0  0  0  0
    0.0890   -1.2530    0.0970 Fe  0  0  0  0  0  0  0  0  0  0  0  0
    2.5900    0.5210    0.0490 Fe  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
  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
  3  8  1  0  0  0  0
  4  7  1  0  0  0  0
  4  8  1  0  0  0  0
M  CHG  1   3   1
M  END
> <OPENEYE_ISO_SMILES>
O1[Fe]O[Fe]2S[Fe][S@+]2[Fe]1

> <OPENEYE_INCHI>
InChI=1S/4Fe.2O.2S/q;;;;;;;+1

> <OPENEYE_INCHIKEY>
ZZXANUDJVNRRAL-UHFFFAOYSA-N

> <FORMULA>
Fe4O2S2+

$$$$