tert-Butanol (2-Methyl-2-Propanol) from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• 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