2929.90.50.20/Diethyl-N,N-diethyl phosphoramidate/Japan

Diethyl-N,N-diethyl phosphoramidate from Japan

Diethyl-N,N-diethyl phosphoramidate is a specific organophosphorus compound with nitrogen function, featuring diethyl groups attached to both the phosphorus and nitrogen atoms. It falls under HTS 2929.90.50.20 as a dialkyl-N,N-dialkyl phosphoramidate where the alkyl groups are ethyl. This chemically defined compound is used in organic synthesis and as an intermediate in pharmaceutical production.

Duty Rate — Japan → United States

21%

Rate breakdown

9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Verify chemical purity and provide Certificate of Analysis (CoA) to confirm it meets the exact structural definition of HTS 2929.90.50.20

• Include Safety Data Sheet (SDS) and ensure proper hazardous materials declaration for DOT and customs compliance

• Avoid misclassification by confirming alkyl groups are only methyl, ethyl, n-propyl, or isopropyl as specified