764120
  -OEChem-02060822472D

  1  0  0     0  0  0  0  0  0999 V2000
    5.8623   -3.6034    0.0000 Rn  0  0  0  0  0  0  0  0  0  0  0  0
M  ISO  1   1 229
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
764120

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
051712915

> <PUBCHEM_SUBSTANCE_SYNONYM>
229Rn
51712-91-5
Radon, isotope of mass 229
Radon-229

> <PUBCHEM_GENERIC_REGISTRY_NAME>
51712-91-5

> <PUBCHEM_XREF_EXT_ID>
051712915

> <PUBCHEM_EXT_DATASOURCE_URL>
http://chem.sis.nlm.nih.gov/chemidplus/

> <PUBCHEM_EXT_SUBSTANCE_URL>
http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced&regno=051712915

$$$$