Cyclopentane from China
Cyclopentane (C5H10) is a five-membered ring cycloalkane under HTS 2902.19.00. Primarily used as a blowing agent in polyurethane foam production for insulation, it is a separate chemically defined cyclic hydrocarbon.
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
Import Tips
• Include technical data sheet confirming cyclopentane structure per Chapter 29 note (a)
• Classify as UN 1146 Extremely Flammable Liquid with Category 1 labeling
• For foam production use, avoid Chapter 38 if not pre-mixed with other chemicals