Ethyl Diphenylphosphinate from Canada
Ethyl diphenylphosphinate (Ph2P(O)OEt) contains two direct P-C bonds to phenyl groups, classifying as non-halogenated organo-phosphorus derivative under HTS 2931.49.0080. Used as flame retardant intermediate and oxidation reagent.
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
• TSCA registration verification required for US manufacturing use
• Purity >98% specification prevents mixture classification under 3824
• Flash point documentation for Class 3 flammable liquid shipping