Distilled Diethyl Phosphite 99.5% Purity
Vacuum-distilled diethyl phosphite at 99.5% purity is a separate chemically defined compound. High purity does not affect classification under heading 29.20, which covers phosphite esters regardless of purity level.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a different high-purity phosphite ester
Other phosphite esters fall under the residual subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the distillation process and purity to support the classification
• Provide the CAS number and a certificate of analysis
• Ensure the product is not considered a pharmaceutical intermediate requiring additional permits
Related Products under Tariff item 2920.22.00
Bulk Diethyl Phosphite in ISO Tanks
Bulk diethyl phosphite shipped in ISO tanks for industrial chemical distribution. The product is a separate chemically defined organic compound of heading 29.20, and the ISO tank is transport packaging that does not alter its classification.
Diethyl Phosphite
Diethyl phosphite, a colorless liquid organophosphorus compound with the formula (C2H5O)2P(O)H, is a separate chemically defined phosphite ester of an inorganic acid of a non-metal. It meets the Chapter 29 criteria for classification under heading 29.20.
Diethyl Phosphite 98% Technical Grade
Technical grade diethyl phosphite at 98% purity is a separate chemically defined compound, even with minor impurities. It is used in industrial synthesis of herbicides like glyphosate intermediates and falls under heading 29.20 as a phosphite ester.
Diethyl Phosphite Flame Retardant Intermediate
Diethyl phosphite used as an intermediate for synthesizing phosphorus-based flame retardants is a separate chemically defined compound. Its end use does not affect classification under heading 29.20, which covers phosphite esters by chemical identity.
Diethyl Phosphite for Glyphosate Synthesis
High-purity diethyl phosphite specifically for glyphosate synthesis is a separate chemically defined compound. The intended use in agrochemical production does not change its classification under heading 29.20.
Diethyl Phosphite with 50ppm BHT Stabilizer
Diethyl phosphite with 50 ppm BHT stabilizer is a separate chemically defined compound with an added stabilizer necessary for preservation. Under Chapter 29 Note 1(f), such additions do not remove the product from heading 29.20.