Cyclopentane from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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