754714 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.7042 -3.6292 0.0000 Er 0 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 166 M END > 0 > 0 > 754714 > 3 > ChemIDplus > 014900119 > 14900-11-9 166Er Erbium, isotope of mass 166 Erbium-166 > 14900-11-9 > 014900119 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014900119 > 177497 1 $$$$