3733952 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3733952 > 2 > ChemIDplus > 013981776 > 13981-77-6 Calcium, isotope of mass 46 Calcium-46 > 13981-77-6 > 013981776 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=013981776 $$$$