2931.43.00.00/Diethyl Ethylphosphonate/Japan

Diethyl Ethylphosphonate from Japan

Diethyl ethylphosphonate (DEEP) is a non-halogenated organo-phosphorus compound used primarily as a chemical intermediate in organic synthesis and flame retardant production. It falls under HTS 2931.43.00.00 as it is specifically named as a separate chemically defined organo-inorganic compound containing phosphorus directly linked to carbon. This colorless liquid is essential in manufacturing pesticides and plasticizers.

Duty Rate — Japan → United States

13.7%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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Import Tips

• Provide detailed chemical analysis certificates confirming purity and structure to verify classification under 2931.43 as a specific organo-phosphorus compound

• Include Safety Data Sheets (SDS) and ensure proper UN packaging for flammable liquids (Class 3) to comply with DOT and customs requirements

• Avoid misclassification as pesticide preparations (3808) by importing as pure compound, not formulated product