Isobutanol (IUPAC nomenclature: 2-methylpropan-1-ol; also known as 2-methylpropyl alcohol, among other names) is a colorless, flammable, organic compound with a characteristic smell. Its isomers are 1-butanol, 2-butanol and tert-butanol. It is classified as an alcohol and as such it is widely used as a solvent in chemical reactions, as well as being a useful starting material for organic synthesis.

2-methylpropan-1-ol; also known as 2-methylpropyl alcohol, among other names) is a colorless, flammable, organic compound with a characteristic smell. Its isomers are 1-butanol, 2-butanol and tert-butanol. It is classified as an alcohol and as such it is widely used as a solvent in chemical reactions, as well as being a useful starting material for organic synthesis.

t-Butanol, or 2-methyl-2-propanol, is the simplest tertiary alcohol. It is one of the four isomers of butanol. tert-Butanol is a clear liquid with a camphor-like odor. It is well soluble in water and miscible with ethanol and diethyl ether.

tert-Butanol, or 2-methyl-2-propanol, is the simplest tertiary alcohol. It is one of the four isomers of butanol. tert-Butanol is a clear liquid with a camphor-like odor. It is well soluble in water and miscible with ethanol and diethyl ether. It is unique among the isomers of butanol because it tends to be a solid at room temperature, with a melting point slightly above 25 degrees Celsius.

tertiary-Butyl alcohol is used as a solvent, as a denaturant for ethanol, as an ingredient in paint removers, as an octane booster for gasoline, as an oxygenate gasoline additive, and as an intermediate in the synthesis of other chemical commodities such as flavors and perfumes

When tert-butanol is deprotonated with a strong base, the product is an alkoxide anion. In this case, it is tert-butoxide. For example, when tert-butanol is deprotonated with sodium hydride, the resultant is sodium tert-butoxide.