2-Butene Industrial Grade from Japan
Industrial 2-butene (mixed cis/trans isomers) is a chemically defined butene mixture under HTS 2901.23.00.00, used in solvent production and alkylation processes.
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
• Specify isomer ratio (e.g
• 50/50 cis/trans) in COA for customs verification
• Ensure pressure cylinders meet UN specifications for import clearance
• Document as 'isomer thereof' to distinguish from crude petroleum fractions