198089 -OEChem-02060822412D 1 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 K 1 4 0 0 0 0 0 0 0 0 0 0 M RAD 1 1 2 M ISO 1 1 40 M END > 0 > 0 > 198089 > 3 > ChemIDplus > 013966002 > 13966-00-2 Potassium, isotope of mass 40 Potassium-40 > 13966-00-2 > 013966002 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=013966002 > 6328542 1 $$$$