763153 -OEChem-02060822472D 1 0 0 0 0 0 0 0 0999 V2000 5.8615 -3.6007 0.0000 Pa 0 0 0 0 0 0 0 0 0 0 0 0 M ISO 1 1 227 M END > 0 > 0 > 763153 > 3 > ChemIDplus > 029901971 > 29901-97-1 Protactinium, isotope of mass 227 Protactinium-227 > 29901-97-1 > 029901971 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=029901971 > 185707 1 $$$$