O-Ethyl Methyl Phosphonofluoridate (EMPF) from Germany
A halogenated organo-phosphorus compound with an ethyl group and methyl substituent on the phosphorus atom bonded to fluoride. It falls under HTS 2931.59.0010 as an O-alkyl (C2) alkyl (methyl) phosphonofluoridate, matching the chemical structure defined in the heading for other halogenated organo-phosphorous derivatives. These are separate chemically defined organic compounds per Chapter 29 note (a).
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require end-user certificates and verify compliance with Chemical Weapons Convention (CWC) schedules; ensure SDS documentation specifies exact chemical purity
• Common pitfall: misclassification as pesticide intermediate without fluoride confirmation
• Consult CBP for Schedule 1 chemical import permits