754768 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 -2.3887 1.7142 0.0000 Tl 0 4 0 0 0 0 0 0 0 0 0 0 M RAD 1 1 2 M ISO 1 1 199 M END > 0 > 0 > 754768 > 3 > ChemIDplus > 015064661 > 15064-66-1 199Tl Thallium, isotope of mass 199 Thallium-199 > 15064-66-1 > 015064661 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=015064661 > 6337571 1 $$$$