3736323 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3736323 > 2 > ChemIDplus > 025729413 > 25729-41-3 39Ar Argon, isotope of mass 39 Argon-39 > 25729-41-3 > 025729413 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=025729413 $$$$