744612 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 4.0408 -1.7970 0.0000 Pm -2 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 143 M END > 0 > 0 > 744612 > 3 > ChemIDplus > 014834721 > 143Pm 14834-72-1 Promethium, isotope of mass 143 Promethium-143 > 14834-72-1 > 014834721 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014834721 > 167177 1 $$$$