Triethyl Phosphite with MEHQ Inhibitor
Triethyl phosphite inhibited with 4-methoxyphenol (MEHQ) to prevent polymerization. Per Chapter Note 1(f), the addition of a stabilizer necessary for preservation or transport does not affect classification. It remains a phosphite ester under tariff item 2920.24.00.
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 phosphite ester
Other phosphite esters fall under this item.
If the MEHQ content is significant and changes classification
If the inhibitor is present in large amounts, heading 29.33 may apply.
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 MEHQ concentration and its purpose as a stabilizer on customs documents
• Ensure the stabilizer is necessary for preservation and does not alter the product's general use
• Provide SDS for MEHQ if requested by CBSA
Related Products under Tariff item 2920.24.00
Distilled Triethyl Phosphite BP Grade
Distilled triethyl phosphite of BP grade, a separate chemically defined organic compound (C6H15O3P), purified by fractional distillation to remove secondary phosphites. It is a phosphite ester of phosphorous acid, an inorganic acid of a non-metal, and therefore falls squarely under tariff item 2920.24.00.
High Purity Triethyl Phosphite 99.5%
High-purity triethyl phosphite at 99.5% purity, a separate chemically defined organic compound used as an intermediate in pharmaceutical synthesis. It is a phosphite ester of phosphorous acid, meeting the definition of heading 29.20 and specifically tariff item 2920.24.00.
Technical Triethyl Phosphite 97% Drums
Technical-grade triethyl phosphite at 97% purity, packaged in 200 kg drums for bulk chemical import. As a separate chemically defined organic compound, it is a phosphite ester of phosphorous acid, classified under tariff item 2920.24.00. The minor impurities do not affect its classification.
Triethyl Phosphite
Triethyl phosphite, a colorless liquid organophosphorus compound with the formula P(OCH2CH3)3, is a phosphite ester of phosphorous acid. It is a separate chemically defined organic compound, classified under tariff item 2920.24.00 as an ester of an inorganic acid of a non-metal.
Triethyl Phosphite 98% Technical Grade
Technical-grade triethyl phosphite at 98% purity, used in industrial synthesis of herbicides and stabilizers. It is a separate chemically defined organic compound, a phosphite ester of phosphorous acid, classified under tariff item 2920.24.00. Minor impurities do not alter its chemical identity.
Triethyl Phosphite for Pesticide Synthesis
Industrial triethyl phosphite specified for glyphosate synthesis, but classification is based on chemical identity, not end use. As a separate chemically defined organic compound, it is a phosphite ester of phosphorous acid, classified under tariff item 2920.24.00.