2-Methyl-1-Butene from China

2-Methyl-1-butene, a branched pentene often associated with C4/C5 processing, classified under butene isomers HTS 2901.23.00.00 when pure.

Duty Rate — China → United States

37.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

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Import Tips

• Confirm C5 hydrocarbon exclusion via precise molecular weight specs

• Specialty chemical import - requires end-user verification

• Packaging in lecture bottles for research quantities