BA
  -OEChem-11082420203D

  1  0  0     0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 Ba  0  2  0  0  0  0  0  0  0  0  0  0
M  CHG  1   1   2
M  END
> <OPENEYE_ISO_SMILES>
[Ba+2]

> <OPENEYE_INCHI>
InChI=1S/Ba/q+2

> <OPENEYE_INCHIKEY>
XDFCIPNJCBUZJN-UHFFFAOYSA-N

> <FORMULA>
Ba+2

$$$$