754640 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.6208 -3.5458 0.0000 Tb -2 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 157 M END > 0 > 0 > 754640 > 3 > ChemIDplus > 014391185 > 14391-18-5 157Tb Terbium, isotope of mass 157 Terbium-157 > 14391-18-5 > 014391185 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014391185 > 177425 1 $$$$