3754121 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3754121 > 2 > ChemIDplus > 068187600 > 68187-60-0 EINECS 269-112-7 Hydrocarbons, C4, ethane-propane-cracked Mixed C-4 hydrocarbons > 68187-60-0 > 068187600 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=068187600 $$$$