MF4
  -OEChem-04192423163D

  5  4  0     0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 Mg  0  6  0  0  0  0  0  0  0  0  0  0
    0.0000   -1.4620   -1.0330 F   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    1.4620   -1.0330 F   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4620    0.0000    1.0330 F   0  0  0  0  0  0  0  0  0  0  0  0
    1.4620    0.0000    1.0330 F   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  1  3  1  0  0  0  0
  1  4  1  0  0  0  0
  1  5  1  0  0  0  0
M  CHG  1   1  -2
M  END
> <OPENEYE_ISO_SMILES>
F[Mg-2](F)(F)F

> <OPENEYE_INCHI>
InChI=1S/4FH.Mg/h4*1H;/q;;;;+2/p-4

> <OPENEYE_INCHIKEY>
XVYWAXYEHHUKQW-UHFFFAOYSA-J

> <FORMULA>
F4Mg-2

$$$$