Trimethylamine N-Oxide Dihydrate
Trimethylamine N-oxide dihydrate is a crystalline compound derived from trimethylamine, used as a protein stabilizer and preservative in biochemical research and seafood processing. It is classified under this tariff item as a derivative of trimethylamine, with the N-oxide form considered a salt-like derivative of the acyclic monoamine.
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 product is considered an organo-sulphur compound
Trimethylamine N-oxide contains an N-O bond, but if it also contains sulphur impurities, it may fall under organo-sulphur compounds.
If the product is classified as a compound with other nitrogen functions
If the N-oxide is considered a nitrogen function other than an amine, it may be classified under compounds with other nitrogen functions.
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
• Confirm the hydration state (dihydrate) and provide a certificate of analysis to support classification
• Ensure the product is labelled for research or industrial use, as food-grade applications may require additional approvals
• Check if the product is subject to Canadian food safety regulations if used in seafood processing
Related Products under Tariff item 2921.11.00
Betaine Hydrochloride (Trimethylglycine HCl)
Betaine hydrochloride, also known as trimethylglycine hydrochloride, is a crystalline compound used primarily as a gastric acidifier and digestive aid in nutritional supplements. It is classified under this tariff item as a salt of trimethylamine, an acyclic monoamine, with the hydrochloride salt form falling within the scope of heading 29.21.
Carnitine Hydrochloride (from Methylamine)
L-Carnitine hydrochloride is a white crystalline powder synthesized from methylamine intermediates, used as a nutritional supplement to support energy metabolism. It is classified here as a salt of an acyclic monoamine derivative, specifically a trimethylamine derivative, with the hydrochloride salt form falling within heading 29.21.
Choline Chloride (from Trimethylamine)
Choline chloride is a quaternary ammonium salt produced from trimethylamine and ethylene oxide, widely used as a feed additive to promote growth in poultry and livestock. It is classified under this tariff item as a salt of trimethylamine, with the chloride salt form falling within the scope of acyclic monoamine salts.
Dimethylamine Anhydrous
Anhydrous dimethylamine is the pure gaseous form of dimethylamine, a simple acyclic monoamine. It is a separate chemically defined organic compound of heading 29.21, and being anhydrous, it contains no added solvent or stabilizer. It is directly classifiable under tariff item 2921.11.00 as dimethylamine.
Dimethylamine Borane Complex
Dimethylamine borane is a coordination compound of dimethylamine and borane, used as a reducing agent in electroless plating and as a catalyst in various chemical reactions. It is classified under this tariff item as a salt of dimethylamine, with the borane complex considered a salt-like derivative of the acyclic monoamine.
Dimethylamine Hydrochloride
Dimethylamine hydrochloride is the salt of dimethylamine, formed by reacting dimethylamine with hydrochloric acid. As a salt of a simple acyclic monoamine, it is classifiable under heading 29.21, and specifically under tariff item 2921.11.00 as a salt of dimethylamine. It is a chemically defined organic compound used as an intermediate in the production of surfactants, rubber accelerators, and herbicides.