2-butan-2-yloxy-3-methylbut-1-ene;3-methyl-2-sec-butoxy-but-1-ene;3-methyl-2-sec-butoxybut-1-ene;2-butan-2-yloxy-3-methyl-but-1-ene;1-Butene, 3-methyl-2-(1-methylpropoxy)-
2-butan-2-yloxy-3-methylbut-1-ene