2-methylbutan-2-ol1,1-dimethyl-1-propanol2-methyl-2-butanol2-methylbutan-2-ol2M2B3-methylbutan-3-olamylene hydratedimethyl ethyl carbinoldimethylethylcarbinolethyl dimethyl carbinolethyldimethylcarbinolt-amyl alcoholt-pentyl alcoholtert-amyl alcoholtert-isoamyl alcoholtert-pentanoltert-pentyl alcohol