HGN
  -OEChem-11082419103D

  2  1  0     0  0  0  0  0  0999 V2000
   -1.3200    0.0000    0.0000 Hg  0  0  0  0  0  0  0  0  0  0  0  0
    1.3200   -0.0000   -0.0000 Hg  0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
[Hg][Hg]

> <OPENEYE_INCHI>
InChI=1S/2Hg

> <OPENEYE_INCHIKEY>
KYKQHSMYWLWROM-UHFFFAOYSA-N

> <FORMULA>
Hg2

$$$$