Methylarsonic Acid from Japan
Methylarsonic acid (CH3AsO(OH)2) is a simple organoarsenic compound with direct As-C bond and acid groups. Falls under HTS 2931.90.90.40 as other organo-inorganic compounds not covered by prior specific subheadings. Employed in agriculture as herbicide and cotton desiccant.
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
• File TSCA premanufacture notice if new use; provide arsenic content analysis for customs verification
• Watch for classification shift if diluted beyond Chapter 29 solvent limits