tert-Butyl alcohol (
TBA), also called
tert-butanol or
2-methylpropan-2-ol (
2M2P), is the simplest tertiary alcohol, with a
formula of (CH
3)
3OH (sometimes represented as
t-BuOH). It is one of the four
isomers of
butanol.
tert-Butyl alcohol is a clear liquid (or a colorless solid, depending on the ambient temperature) with a
camphor-like odor. It is very 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 °C.