2,4,5-Trichlorophenoxyacetic Acid (2,4,5-T)
Pure 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), a synthetic auxin herbicide that disrupts plant growth by mimicking natural hormones. It is a separate chemically defined organic compound, classified under tariff item 2918.91.00. This is the base acid form, used in herbicide formulations.
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 acid is not 2,4,5-T but another trichlorophenoxyacetic acid isomer
Only 2,4,5-T is specifically named in 2918.91.00; other isomers fall under residual items.
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 labeled as 2,4,5-T (ISO) and provide the CAS number (93-76-5) for identification
• Verify if import permits are needed under the Pest Control Products Act
• Declare the correct HS code 2918.91.00 to avoid penalties
Related Products under Tariff item 2918.91.00
2,4,5-T Amine Salt (Triethanolamine)
A triethanolamine salt of 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), formulated as a highly water-soluble concentrate for aquatic weed control. As a salt of the specified acid, it falls directly under tariff item 2918.91.00, which covers 2,4,5-T and its salts and esters. Its water solubility minimizes drift and makes it suitable for spray applications.
2,4,5-T Free Acid with Stabilizer
2,4,5-T free acid with a stabilizer added to prevent degradation during transport, ensuring the product remains stable for herbicide manufacturing. Chapter note 1(f) permits added stabilizers necessary for preservation, so this product remains classified under tariff item 2918.91.00. The stabilizer does not alter the product's essential character.
2,4,5-T Potassium Salt
Potassium salt of 2,4,5-trichlorophenoxyacetic acid, a quick-dissolving formulation for spray applications in pasture weed management. As a salt of the specified acid, it is classified under tariff item 2918.91.00. The potassium form enhances water solubility and rapid uptake.
2-Ethylhexyl 2,4,5-T Ester
2-Ethylhexyl ester of 2,4,5-T, a low-volatility ester form used in herbicide mixes to reduce drift and enhance penetration in woody weeds. As an ester of the specified acid, it is classified under tariff item 2918.91.00. The ester form improves oil solubility for foliar applications.
Butyl 2,4,5-Trichlorophenoxyacetate Ester
Butyl ester of 2,4,5-trichlorophenoxyacetic acid, a volatile ester form for foliar absorption in weed control. As an ester of the specified acid, it falls under tariff item 2918.91.00. Its volatility aids in rapid plant uptake but requires careful handling.
Isooctyl Ester of 2,4,5-Trichlorophenoxyacetic Acid
Isooctyl ester of 2,4,5-trichlorophenoxyacetic acid, used in oil-based herbicide formulations for better leaf penetration and systemic weed control. As an ester of the specified acid, it is classified under tariff item 2918.91.00. The isooctyl ester provides low volatility and improved efficacy.