2931.90.90.30/2-Chlorovinyldichloroarsine (Lewisite 1)/Canada

2-Chlorovinyldichloroarsine (Lewisite 1) from Canada

2-Chlorovinyldichloroarsine is a highly toxic organoarsenic compound classified under HTS 2931.90.90.30 as an other organo-inorganic compound where arsenic is directly linked to carbon. It features a vinyl chloride group attached to arsenic dichloride, fitting Chapter 29's scope for separate chemically defined organic compounds with metallic elements.

Duty Rate — Canada → United States

3.7%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• Obtain special licenses from BIS and ATF due to its status as a chemical weapon precursor; ensure UN-approved packaging for toxic substances

• Verify chemical purity documentation to avoid reclassification; common pitfall is inadequate hazard labeling leading to customs holds