744784 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 2.4938 2.2988 0.0000 Pm 0 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 145 M END > 0 > 0 > 744784 > 3 > ChemIDplus > 015706442 > 145Pm 15706-44-2 Promethium, isotope of mass 145 Promethium-145 > 15706-44-2 > 015706442 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015706442 > 167342 1 $$$$