198194 -OEChem-02060822412D 1 0 0 0 0 0 0 0 0999 V2000 0.0000 0.0000 0.0000 Th 0 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 227 M END > 0 > 0 > 198194 > 3 > ChemIDplus > 015623479 > 15623-47-9 Thorium, isotope of mass 227 Thorium-227 > 15623-47-9 > 015623479 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015623479 > 61806 1 $$$$