754657 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.8208 -3.6000 0.0000 Nb -3 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 90 M END > 0 > 0 > 754657 > 3 > ChemIDplus > 014681653 > 14681-65-3 90Nb Niobium, isotope of mass 90 Niobium-90 > 14681-65-3 > 014681653 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=014681653 > 177442 1 $$$$