tert-Amyl alcohol (TAA), systematic name: 2-methylbutan-2-ol (2M2B), is a branched pentanol used primarily as a pharmaceutical or pigment solvent. It remains liquid at room temperature making it a useful alternative to tert-butyl alcohol. It is a colorless liquid with a pungent odor of camphor. It is slightly soluble in water and miscibile organic solvents. Although it can be produced naturally, by the fermentation of ethanol, it is primarily produced synthetically via hydroformylation.