754736 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 3.5833 -2.5917 0.0000 Pm 0 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 141 M END > 0 > 0 > 754736 > 3 > ChemIDplus > 014952273 > 141Pm 14952-27-3 Promethium, isotope of mass 141 Promethium-141 > 14952-27-3 > 014952273 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014952273 > 177521 1 $$$$