REO
  -OEChem-04192423173D

  5  4  0     0  0  0  0  0  0999 V2000
   -0.0260   -0.0010    0.0000 Re  0  0  0  0  0  0  0  0  0  0  0  0
    1.9630   -0.2120    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.5170    0.8780   -1.4240 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.7770   -1.5740    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.5170    0.8780    1.4240 O   0  5  0  0  0  0  0  0  0  0  0  0
  1  2  2  0  0  0  0
  1  3  2  0  0  0  0
  1  4  2  0  0  0  0
  1  5  1  0  0  0  0
M  CHG  1   5  -1
M  END
> <OPENEYE_ISO_SMILES>
[O-][Re](=O)(=O)=O

> <OPENEYE_INCHI>
InChI=1S/4O.Re/q;;;-1;

> <OPENEYE_INCHIKEY>
WPWXHJFQOFOBAC-UHFFFAOYSA-N

> <FORMULA>
O4Re-

$$$$