XE
  -OEChem-07192416253D

  1  0  0     0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 Xe  0  0  0  0  0  0  0  0  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
[Xe]

> <OPENEYE_INCHI>
InChI=1S/Xe

> <OPENEYE_INCHIKEY>
FHNFHKCVQCLJFQ-UHFFFAOYSA-N

> <FORMULA>
Xe

$$$$