Phenylphosphine Gold Drug Auranofin Intermediate from Canada
Auranofin intermediate featuring aromatic phosphine coordinated with gold, used in rheumatoid arthritis treatment. Falls under HTS 2931.90.22.00 as an aromatic organo-inorganic drug with phosphorus and metal directly linked to aromatic carbon.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide coordination chemistry analysis showing metal-carbon linkages through Chapter 29 note 3(C)(3)
• Include DEA/FDA precursor documentation if used in controlled substance synthesis
• Label with GHS hazard symbols for organometallic toxicity during customs clearance