3765500 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3765500 > 2 > ChemIDplus > 071720439 > 1-Bicyclo(2.2.1)hept-2-en-2-ylethan-1-one 71720-43-9 EINECS 275-891-4 > 71720-43-9 > 071720439 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=071720439 $$$$