Lewisite 1 Technical Grade from Japan
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.
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
• Declare as Schedule 1 chemical under Chemical Weapons Convention; use DOT-approved containers
• Pitfall: Failing to provide SDS can trigger EPA scrutiny; pair with end-use certificates for clearance