OS4
  -OEChem-04262420163D

  1  0  0     0  0  0  0  0  0999 V2000
    0.7420    4.9870   17.8520 Os  0  0  0  0  0  0  0  0  0  0  0  0
M  CHG  1   1   4
M  END
> <OPENEYE_ISO_SMILES>
[Os+4]

> <OPENEYE_INCHI>
InChI=1S/Os/q+4

> <OPENEYE_INCHIKEY>
OQURWADGXKZUIH-UHFFFAOYSA-N

> <FORMULA>
Os+4

$$$$