3728362 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3728362 > 2 > ChemIDplus > 001439992 > 1439-99-2 20-Calcium-47 > 1439-99-2 > 001439992 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=001439992 $$$$