Diphenylchloroarsine from Canada
Diphenylchloroarsine contains two phenyl groups and one chlorine directly on arsenic, with As-C bonds defining its organo-inorganic nature. HTS 2931.90.90.40 covers it as other organo-inorganic, per exclusion of simple halogenated from this heading. Historical use as chemical warfare agent and analytical reagent.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Comply with Chemical Weapons Convention declarations; use triple packaging for poison shipment
• Analytical certs prevent mix-up with Chapter 28 inorganics