p-Nitrophenyl Phosphate
p-Nitrophenyl phosphate is a chromogenic substrate for alkaline phosphatase enzyme assays in biotechnology, used in diagnostic kits and research. It is a nitrated derivative of an aromatic phosphoric acid ester, classified under tariff item 2920.90.00 as an 'other' ester of inorganic acids of non-metals, including nitrated derivatives.
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 |
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Import Tips & Compliance
• Ensure the product is for laboratory or diagnostic use and provide documentation to CBSA
• Check if the product requires a Canadian import permit under chemical or biotechnology regulations
• Store and transport as a hazardous chemical, providing proper SDS to customs
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.