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
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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