RDKit          

  1  0  0  0  0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 Ar  0  0  0  0  0 15  0  0  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_CID>
23968

> <NAME>
Argon


$$$$