200763 -OEChem-02060822402D 0 0 0 0 0 0 0 0 0999 V2000 M END > 200763 > 3 > ChemIDplus > B06300000 > B06300000 > B06300000 Butadiene, butylene mixtures (containing acetylenes) > B06300000 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=B06300000 $$$$