tert-Butanol (2-Methyl-2-Propanol)
tert-Butanol is a tertiary saturated monohydric butanol classified under HTS 2905.14.5050 as an acyclic alcohol with a branched four-carbon structure. Widely used as a gasoline additive and chemical intermediate in pharmaceutical production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If methanol content exceeds 90% in mixture
Chapter notes prioritize classification by principal isomer in alcohol mixtures.
If when supplied as gasoline additive blend with oxidation inhibitors
Antiknock preparations containing alcohols are classified separately from pure compounds.
If halogenated derivative like tert-butyl chloride
Halogenated alcohol derivatives shift to earlier acyclic hydrocarbon derivative headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include GC-MS purity certificates showing minimum 99.5% tert-butanol content to prevent reclassification
• Declare exact water content (<0.3%) as aqueous solutions may require different headings per chapter notes
• Use stainless steel containers only; avoid plastic drums that could cause contamination issues during customs inspection
Related Products under HTS 2905.14.50.50
Isobutanol (2-Methyl-1-Propanol)
Isobutanol is a primary alcohol classified as a saturated monohydric butanol under HTS 2905.14.5050 due to its four-carbon chain structure and single hydroxyl group. It is a colorless liquid used as a solvent in paints, coatings, and chemical synthesis.
sec-Butanol (2-Butanol)
sec-Butanol is a secondary alcohol with formula CH3CH(OH)CH2CH3, classified as 'other butanols' under HTS 2905.14.5050. It serves as an intermediate in producing methyl ethyl ketone and as a solvent in industrial applications.
n-Butanol Technical Grade (1-Butanol)
Technical grade n-butanol (<99.5% purity) is a primary saturated monohydric alcohol classified under HTS 2905.14.5050 'other' butanols. Used extensively as a solvent in lacquers, resins, and plasticizers production.
2-Methyl-2-Butanol (tert-Amyl Alcohol)
2-Methyl-2-butanol is a tertiary C5 acyclic alcohol technically classified as butanol derivative under HTS 2905.14.5050 due to its saturated monohydric structure. Primarily used as a gasoline anti-knock additive.
Butanol Mixtures (C4 Alcohol Blend)
Mixtures containing 60-95% n-butanol, isobutanol, and sec-butanol classified under HTS 2905.14.5050 as 'other' saturated monohydric butanols. Used in solvent formulations and chemical manufacturing.