Methyl Parathion High Purity Reference Standard
This is a high-purity (99%+) methyl-parathion reference standard used for analytical testing and quality control in pesticide residue analysis. It is a separate chemically defined organic compound, specifically the thiophosphoric ester parathion-methyl, which falls squarely under tariff item 2920.11.00.
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 reference standard is packaged as a kit or set with other analytical reagents.
Certified reference materials are often classified under heading 3822 when presented as diagnostic or laboratory reagents.
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
• Ensure the product is accompanied by a certificate of analysis confirming purity and identity as parathion-methyl
• As a hazardous chemical, it may require a permit under the Pest Control Products Act if used as a reference standard for pesticide testing
• Declare the product accurately as a laboratory reference standard to avoid delays
Related Products under Tariff item 2920.11.00
Parathion 80% Wettable Powder Technical
This is parathion technical material formulated as an 80% wettable powder for easier handling in manufacturing. Although formulated, it remains a thiophosphoric ester (parathion) and is classified under tariff item 2920.11.00, as the formulation does not alter its chemical identity.
Parathion Anhydrous Liquid 98%
This is anhydrous parathion liquid at 98% purity, stabilized with epichlorohydrin for safe transport. The stabilizer is added for safety and does not render the product for specific use, so it remains a separate chemically defined organic compound under tariff item 2920.11.00.
Parathion-Methyl (Methyl Parathion) 97% TC
This is methyl-parathion (ISO) technical concentrate at 97% purity, the primary form used for manufacturing emulsifiable concentrates. As a thiophosphoric ester specifically named in tariff item 2920.11.00, it is classified here regardless of its technical grade.
Parathion-Methyl Sodium Salt Solution 50%
This is an aqueous solution of parathion-methyl sodium salt at 50% active ingredient. Per Chapter 29 Note 1(d), products dissolved in water are covered by the chapter, and per Note 5(C)(1), inorganic salts of organic compounds are classified with the organic compound. Thus, it falls under tariff item 2920.11.00.
Parathion Technical Grade 95%
This is parathion technical grade at 95% purity, a highly toxic organophosphate insecticide. It is a separate chemically defined organic compound, specifically the thiophosphoric ester parathion, and is classified under tariff item 2920.11.00 as the named product.