Phenylarsonic Acid from Canada
Phenylarsonic acid (C6H5AsO3H2) is an aromatic organoarsenic acid with direct As-C linkage. It is classified under HTS 2931.90.90.40 as other organo-inorganic compounds. Applied in pharmaceutical synthesis and veterinary feed additives.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• FDA prior approval for animal drug use; include batch analysis showing >98% purity
• Avoid bulk mixtures to prevent 3824 reclassification