Triphenyl Phosphite
Triphenyl phosphite is an aromatic ester of phosphorous acid used as a stabilizer and antioxidant in polymer processing. It is a chemically defined ester of an inorganic acid of a non-metal (phosphorus) and is classified under tariff item 2920.90.00 as an 'other' ester of inorganic acids of non-metals.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product has direct carbon-phosphorus bonds
Organophosphorus compounds with carbon-phosphorus bonds may be classified under heading 2931.
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
• Provide a certificate of analysis to CBSA to confirm the chemical identity and purity
• Ensure the product is not a mixture of phosphites, which may affect classification
• Check if the product requires registration under Canadian chemical management programs
Related Products under Tariff item 2920.90.00
Antimony Glycolate Ester
Antimony glycolate ester is an antimony(III) ethane-1,2-diolate used as a catalyst in PET resin production and as a flame retardant synergist. It is classified under tariff item 2920.90.00 as an ester salt of an inorganic acid of a non-metal. Its role in polymer production and ester structure determine its classification.
Arsenic Acid Methyl Ester
Arsenic acid methyl ester is a monomethyl arsenate used as a herbicide intermediate and wood preservative component. It is classified under tariff item 2920.90.00 as an ester of an inorganic acid of a non-metal. Its arsenic content and ester structure determine its classification, and it is highly regulated due to toxicity.
Boric Acid Trimethyl Ester
Boric acid trimethyl ester, also known as trimethyl borate, is an ester of boric acid and methanol, used as a boron source in ceramics, flame retardants, and organic synthesis. It is a chemically defined ester of an inorganic acid of a non-metal (boron) and falls under tariff item 2920.90.00 as an 'other' ester of inorganic acids of non-metals.
Chlorpyrifos-methyl
Chlorpyrifos-methyl is an organophosphate insecticide used to control a broad range of pests on grains, vegetables, and turf. As a methyl ester of chlorpyrifos, it is classified under tariff item 2920.90.00 as an ester of an inorganic acid of a non-metal. Its aromatic structure and pesticide function align with the scope of this heading.
Cresyl Diphenyl Phosphate
Cresyl diphenyl phosphate is a mixed aromatic phosphate ester combining cresyl and phenyl groups, used primarily as a flame retardant and plasticizer in hydraulic fluids and engineering plastics. It is a chemically defined ester of phosphoric acid, an inorganic acid of a non-metal (phosphorus), and therefore falls under tariff item 2920.90.00 as an 'other' ester of inorganic acids of non-metals.
Dichlorvos (DDVP)
Dichlorvos (DDVP) is a vinyl phosphate ester pesticide used in fumigation and vaporizers for household and agricultural insect control. It is classified under tariff item 2920.90.00 as an ester of an inorganic acid of a non-metal. Its phosphate ester structure and pesticide application determine its classification.