2-Chlorovinyldichloroarsine
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Duty Rate (from China)
Except as provided in headings 9903.88.33, 9903.88.34, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(g) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(g)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2931.90.90.30
2-Chlorovinyldichloroarsine (Lewisite 1)
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.
Lewisite 1 Technical Grade
Technical grade 2-Chlorovinyldichloroarsine (Lewisite 1) is a synthetic organo-inorganic compound used in chemical research, classified under HTS 2931.90.90.30. The arsenic-carbon bond and chlorine substitutions qualify it as an 'other' organo-inorganic compound per heading 2931 specifications.
2-Chlorovinyldichloroarsine Stabilized Solution
A stabilized solution of 2-Chlorovinyldichloroarsine for safe transport, falling under HTS 2931.90.90.30 as per Chapter note (f) allowing stabilizers for preservation. It remains classified as the core organo-inorganic arsenic compound with direct C-As linkage.
Dichloro(2-chloroethenyl)arsine
Dichloro(2-chloroethenyl)arsine, synonymous with 2-Chlorovinyldichloroarsine, is a specific organoarsenic vesicant classified precisely under HTS 2931.90.90.30. Its structure confirms direct arsenic-carbon bonding, excluding it from sulfonated/halogenated derivatives in notes.