2929.90.50.40/O-Butyl N-Methyl-N-ethyl Phosphoramidofluoridate Salt/Japan

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

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.

Duty Rate — Japan → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• 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