758342 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.8315 -3.6159 0.0000 Se 0 0 0 0 0 15 0 0 0 0 0 0 M ISO 1 1 73 M END > 0 > 0 > 758342 > 3 > ChemIDplus > 015422578 > 15422-57-8 73Se Selenium, isotope of mass 73 Selenium-73 > 15422-57-8 > 015422578 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015422578 > 6337661 1 $$$$