3749884 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3749884 > 2 > ChemIDplus > 065372783 > 65372-78-3 Berkheyaradulene Cyclopenta(a)pentalene, 1,2,3,3a,5a,6,7,8-octahydro-1,3a,4,5a-tetramethyl-, (S-(1alpha,3aalpha,5abeta,8aR*))- > 65372-78-3 > 065372783 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=065372783 $$$$