3736231 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3736231 > 2 > ChemIDplus > 025497772 > 2-Butene, polymer with 2-methylpropene and propene 25497-77-2 Propene, polymer with 2-butene and 2-methylpropene > 25497-77-2 > 025497772 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=025497772 $$$$