3820273 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3820273 > 2 > ChemIDplus > 220543679 > 220543-67-9 Cyclopentene, polymer with 1-butene, (2E)-2-butene, (2Z)-2-butene, 2-methyl-1-propene and 1,3-pentadiene > 220543-67-9 > 220543679 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=220543679 $$$$