REO
  -OEChem-04122417553D

  5  4  0     0  0  0  0  0  0999 V2000
   57.9490   59.1320   12.9510 Re  0  0  0  0  0  0  0  0  0  0  0  0
   56.9070   58.5090   11.8480 O   0  0  0  0  0  0  0  0  0  0  0  0
   57.3220   59.1500   14.5240 O   0  0  0  0  0  0  0  0  0  0  0  0
   58.1710   60.7820   12.5730 O   0  0  0  0  0  0  0  0  0  0  0  0
   59.3630   58.1650   12.9850 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-

$$$$