Trichlorfon Stabilized with Anti-caking Agent

Trichlorfon powder with 0.5% silicon dioxide anti-caking agent per Chapter 29 note (f) for preservation during transport. Remains classified as pure trichlorfon HTS 2931.54.00.00 since stabilizer doesn't change chemical identity or create specific use formulation.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+10.0%13.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3824.99.39Higher: 35% vs 13.7%

If stabilizer >5% or includes surfactants

Excess additives render product a formulated mixture classifiable as chemical preparation

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify stabilizer percentage (<2%) in commercial invoice; stabilizer must be 'necessary for transport' per Chapter notes

Avoid functional additives that suggest formulation

Related Products under HTS 2931.54.00.00

Trichlorfon Technical Grade 98%

Pure trichlorfon (O,O-dimethyl (2,2,2-trichloro-1-hydroxyethyl)phosphonate), a halogenated organo-phosphorus compound used as the active ingredient in pesticides. Classified under HTS 2931.54.00.00 as a separate chemically defined organo-inorganic compound per Chapter 29 note (a). Supplied as off-white crystalline powder for formulation into insecticides.

Trichlorfon USP Veterinary Grade

Pharmaceutical grade trichlorfon meeting USP standards for veterinary deworming applications in horses and livestock. A chemically defined halogenated organo-phosphorus compound specifically named in HTS 2931.54.00.00. Supplied as purified powder with stabilizer for animal health products.

Dylox 80% Trichlorfon Soluble Powder

Bayer Dylox-brand soluble powder concentrate containing 80% trichlorfon for turf and ornamental pest control. While primarily Chapter 38, pure active portion classified under 2931.54 when imported separately for custom formulation. Halogenated organo-phosphorus insecticide meets Chapter 29 chemical definition.

Trichlorfon Research Grade 99+%

High-purity trichlorfon (≥99%) for chemical synthesis and pesticide resistance research. Chemically defined organo-inorganic compound per HTS 2931.54.00.00 with minimal impurities. Supplied in amber glass bottles with desiccant.

Trichlorfon Bulk API for Equine Dewormer

Bulk active pharmaceutical ingredient trichlorfon for manufacturing equine dewormer paste products like Equigard. Pure halogenated organo-phosphorus compound classified under HTS 2931.54.00.00 when imported as API. Meets cGMP standards for veterinary drugs.

Trichlorfon 50% Water Soluble Granules

Water-soluble granule formulation containing 50% trichlorfon for agricultural pest control. When imported as technical material for further dilution, classified under pure compound heading 2931.54.00.00. Granulation aids don't affect Chapter 29 classification.