Triphenylphosphine from China
Triphenylphosphine (PPh3) is a widely used organophosphorus ligand featuring three direct P-C bonds to phenyl groups. Classified under HTS 2931.49.0080 as a non-halogenated organo-phosphorus derivative. Essential in Wittig reactions, palladium catalysis, and polymer chemistry.
Duty Rate — China → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Label with CAS 603-35-0 and purity percentage; impurities >2% may trigger reclassification review
• Ship under proper DOT/UN 2810 poison label; temperature control may be required for stability
• Maintain Certificates of Analysis showing <0.1% halogen content to prevent misclassification