3756507 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3756507 > 2 > ChemIDplus > 068477623 > 68477-62-3 Butylenes extract EINECS 270-743-5 Extracts, petroleum, cold-acid, C3-5, butene-rich > 68477-62-3 > 068477623 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=068477623 $$$$