tert-Butanol (2-methyl-2-propanol) is a tertiary alcohol organic compound. The pure product is colorless crystalline; it becomes a colorless volatile liquid when containing a small amount of water, with a camphor-like odor. It is prone to supercooling and flammable, and can form an azeotrope with water (water content 11.76%).

1. Organic solvent: Solvent for coatings, inks, adhesives, pharmaceuticals and pesticides, often used as a substitute for n-butanol.
2. Chemical raw material: Used in the synthesis of methyl methacrylate, tert-butylphenol, tert-butylamine, flavors and fragrances, and pharmaceutical intermediates.
3. Fuel additive: Antiknock agent and cosolvent for internal combustion engine fuels.
4. Analytical reagent: Solvent for chromatographic analysis and organic synthesis.