763139 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.2667 -3.7792 0.0000 Hf 4 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 184 M END > 0 > 0 > 763139 > 3 > ChemIDplus > 029687283 > 184Hf 29687-28-3 Hafnium, isotope of mass 184 Hafnium-184 > 29687-28-3 > 029687283 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=029687283 > 185696 1 $$$$