3764720 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3764720 > 2 > ChemIDplus > 071329378 > 71329-37-8 Catalytic cracking depropanizer bottoms, butane-butylene olefin hydrocarbon stream Residues, (petroleum), catalytic cracking depropanizer, C4-rich Residues, petroleum, catalytic cracking depropanizer, C4-rich > 71329-37-8 > 071329378 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=071329378 $$$$