Methyl-bis(diethylamino)methylene)phosphonamidofluoridate

A highly specific halogenated organo-phosphorus compound containing fluorine directly linked to phosphorus via the phosphonamidofluoridate structure. Classified under HTS 2931.59.00.35 as it fits the definition of other halogenated organo-inorganic compounds with nonmetal atoms (P,F,N) directly bonded to carbon or phosphorus. Used primarily as a chemical intermediate in pharmaceutical or agrochemical synthesis.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+10.0%13.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2931.90.30.00Higher: 41.5% vs 13.7%

If not specifically enumerated and contains other organo-inorganic features

Other organo-inorganic compounds not elsewhere specified; moves to residual provision if lacks exact phosphonamidofluoridate structure.

3824.99Higher: 15% vs 13.7%

If imported as solution or mixture with solvents >10% by weight

Chemical preparations not elsewhere specified; Chapter 29 excludes solutions unless meeting safety/transport exceptions.

2933.59Higher: 16.5% vs 13.7%

If classified primarily by heterocyclic nitrogen structure over P-F bond

Heterocyclic compounds with nitrogen; classification follows last occurring heading per Chapter Note 3.

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Import Tips & Compliance

Verify Chemical Weapons Convention (CWC) Schedule 2 status requiring End-Use Certificate and declaration to U.S

Customs

Ship as Dangerous Goods (UN2810 Toxic liquids, Class 6.1) with proper MSDS, labeling, and UN-approved packaging

Confirm purity >98% via HPLC to avoid reclassification as mixture under Chapter 38