3737068 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3737068 > 2 > ChemIDplus > 027227732 > 27227-73-2 4-(5-Norbornen-2-yl)-3-buten-2-one EINECS 248-347-9 > 27227-73-2 > 027227732 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=027227732 $$$$