Triethylphosphine Gold(I) Chloride from Japan
This gold(I) complex (AuCl(PEt3)) contains gold-phosphorus-carbon chain linkages qualifying as organo-inorganic under 2931.90.90. Used in homogeneous catalysis and antirheumatic drugs; chapter notes prioritize organometallic classification.
Duty Rate — Japan → United States
12.5%
Rate breakdown
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 gold content per 19 CFR 141.89 for precious metal duty assessment
• Pharma intermediate—provide DMF or Type II DMF reference for FDA import review
• Light-sensitive; shipping papers must specify cool, dark storage conditions