Cyclodecane from Japan
Cyclodecane (C10H20) is a medium-ring saturated cycloalkane serving as a phase-change material and polymer precursor. It qualifies under HTS 2902.19.0050 as a higher cyclane not specifically provided for.
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
• Demonstrate ring size via mass spectrometry fragmentation patterns
• Maintain storage below 10°C to prevent solid phase transition during customs inspection
• Certify synthetic origin to avoid Chapter 27 petroleum hydrocarbon classification