cis-2-Butene from Japan
cis-2-Butene is the cis isomer of 2-butene, an acyclic alkene with formula CH3-CH=CH-CH3, falling under HTS 2901.23.00.00 for butene isomers. It is used in organic synthesis and as a research chemical.
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 stereochemistry (cis) in technical documentation to distinguish from trans isomer
• Ensure DOT-compliant packaging for flammable liquids during transport and customs inspection
• Check for stabilizer additives that could reclassify as Chapter 29 note (f) product