dihydro(2-methylbuta-1,3-dienyl)aluminium Isoprenyl Dihydride(2-methyl-1,3-butadienyl)aluminum Aluminum, dihydro(2-methyl-1,3-butadien-1-yl)- Aluminum, dihydro(2-methyl-1,3-butadienyl)- Einecs 246-404-2