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Diethyl-N,N-diethyl phosphoramidate

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.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+131.0%137.5%
🇲🇽Mexico6.5%+103.5%110%
🇨🇦Canada6.5%+103.5%110%
🇩🇪GermanyFree+18.5%18.5%
🇯🇵JapanFree+21.0%21%

Alternative Classifications

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

2931Lower: 16.2% vs 137.5%

If containing metal atoms directly linked to carbon

Organo-inorganic compounds with metal-carbon bonds shift to heading 2931 per chapter notes.

2929.90Same rate: 137.5%

If classified as toxic phosphoramidates

Certain phosphoramidates with toxicity profiles fall under the specific toxic subheading before the general 'other' category.

2853.90Lower: 15.3% vs 137.5%

If in aqueous solution beyond simple dissolution

Complex solutions not qualifying under chapter note (d) may be treated as other phosphides or inorganic compounds.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• 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

Related Products under HTS 2929.90.50.20