754856 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.8924 -3.6037 0.0000 K 0 4 0 0 0 0 0 0 0 0 0 0 M RAD 1 1 2 M ISO 1 1 45 M END > 0 > 0 > 754856 > 3 > ChemIDplus > 015706419 > 15706-41-9 45K Potassium, isotope of mass 45 Potassium-45 > 15706-41-9 > 015706419 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015706419 > 6337583 1 $$$$