3756528 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3756528 > 2 > ChemIDplus > 068477850 > 68477-85-0 Butane, butylene mix EINECS 270-767-6 Gases, (petroleum), C4-rich Gases, petroleum, C4-rich > 68477-85-0 > 068477850 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=068477850 $$$$