754893 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.7216 -3.6329 0.0000 Sm 4 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 156 M END > 0 > 0 > 754893 > 3 > ChemIDplus > 015759703 > 156Sm 15759-70-3 Samarium, isotope of mass 156 Samarium-156 > 15759-70-3 > 015759703 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015759703 > 177673 1 $$$$