744473 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 6.5130 -2.2226 0.0000 Ac -2 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 225 M END > 0 > 0 > 744473 > 3 > ChemIDplus > 014265851 > 14265-85-1 225Ac Actinium, isotope of mass 225 Actinium-225 > 14265-85-1 > 014265851 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014265851 > 167045 1 $$$$