744835 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 4.0396 1.8029 0.0000 Fr 0 4 0 0 0 0 0 0 0 0 0 0 M RAD 1 1 2 M ISO 1 1 223 M END > 0 > 0 > 744835 > 3 > ChemIDplus > 015756986 > 15756-98-6 223Fr Francium, isotope of mass 223 Francium-223 > 15756-98-6 > 015756986 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015756986 > 6337087 1 $$$$