O-Butyl N-Methyl-N-ethyl Phosphoramidofluoridate Salt

The protonated salt form of O-butyl N-(methyl ethyl amino) phosphoramidofluoridate, explicitly covered by HTS 2929.90.50.40 including corresponding alkylated/protonated salts. Used in ionic organophosphorus catalysis.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+25.0%31.5%
🇲🇽Mexico6.5%6.5%
🇨🇦Canada6.5%6.5%
🇩🇪Germany6.5%6.5%
🇯🇵Japan6.5%6.5%

Alternative Classifications

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

2929.90Same rate: 31.5%

If other nitrogen function salts without P-F structure

Different nitrogen function compounds use preceding 10-digit statistical suffixes.

2923.20Lower: 15% vs 31.5%

If classified as quaternary ammonium salt

If nitrogen quaternary without phosphorus, classifies under heading 2923.

2939Lower: 16.5% vs 31.5%

If natural/miscellaneous nitrogen compound

Catch-all for other nitrogen heterocycles or natural products in heading 2939.

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Import Tips & Compliance

Specify protonated/alkylated salt form in import documentation matching tariff language exactly

Include counterion identification (e.g

tetrafluoroborate) in chemical passport

Monitor for hydrolysis—use inert atmosphere packaging for salt stability