3733963 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3733963 > 2 > ChemIDplus > 013982371 > 13982-37-1 Niobium, isotope of mass 92 > 13982-37-1 > 013982371 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=013982371 $$$$