MMC
  -OEChem-04192423343D

  5  4  0     0  0  0  0  0  0999 V2000
   -2.2130   10.9000   24.3360 Hg  0  3  0  0  0  0  0  0  0  0  0  0
   -1.4880   11.5730   26.1020 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0050   11.3200   25.1290 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5960   12.3850   26.8570 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4580   11.3520   27.1940 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  2  3  1  0  0  0  0
  2  4  1  0  0  0  0
  2  5  1  0  0  0  0
M  CHG  1   1   1
M  END
> <OPENEYE_ISO_SMILES>
C[Hg+]

> <OPENEYE_INCHI>
InChI=1S/CH3.Hg/h1H3;/q;+1

> <OPENEYE_INCHIKEY>
DBUXSCUEGJMZAE-UHFFFAOYSA-N

> <FORMULA>
CH3Hg+

$$$$