Bis(2-Chlorovinyl)Chloroarsine from Japan
Bis(2-chlorovinyl)chloroarsine is a highly toxic organo-arsenic compound containing arsenic directly linked to carbon atoms, classified under HTS 2931.90.90.35 as an other organo-inorganic compound. It falls within Chapter 29 per the notes for separate chemically defined organic compounds with nonmetal atoms like arsenic bonded to carbon, excluding sulfonated or halogenated derivatives covered elsewhere.
Duty Rate — Japan → United States
23.8%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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
• Obtain prior approval from BIS or ATF due to chemical weapons precursor status; include detailed safety data sheets and toxicity profiles in documentation
• Verify end-use statements to avoid dual-use export control violations
• Common pitfall: inadequate labeling of arsenic content leading to CBP holds