Unsymmetrical Dimethylhydrazine
Unsymmetrical dimethylhydrazine (UDMH) is an organic compound used in hypergolic rocket fuels. While it is a hydrazine derivative, it is typically classified as an organic chemical under Chapter 29, not under this inorganic heading.
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 classified as an organic derivative of hydrazine.
Organic derivatives of hydrazine fall under Chapter 29, not Chapter 28.
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
• UDMH is generally an organic compound and should be classified under Chapter 29
• Seek a binding ruling from the CBSA to confirm the correct tariff classification
• If imported under this item, ensure it meets the strict criteria for inorganic hydrazine compounds
Related Products under Tariff item 2825.10.00
Anhydrous Hydrazine
Anhydrous hydrazine (N2H4) is a highly reactive, colorless liquid used primarily in chemical synthesis and as a rocket propellant. It is a separate chemically defined compound of an inorganic base, falling squarely within the scope of tariff item 2825.10.00.
Hydrazine Hydrate 64% Solution
Hydrazine hydrate 64% solution is an aqueous solution of hydrazine, a chemically defined compound dissolved in water. It is widely used in boiler water treatment and as a blowing agent, and qualifies under Chapter 28 Note 1(b) as a solution of a separate chemically defined compound.
Hydrazine Monohydrate
Hydrazine monohydrate (N2H4·H2O) is a chemically defined compound consisting of hydrazine with one molecule of water. It is used as a reducing agent and in rocket propulsion, and is classified under this item as an inorganic derivative of hydrazine.
Hydrazine Sulfate
Hydrazine sulfate (N2H4·H2SO4) is a white crystalline inorganic salt of hydrazine, used in analytical chemistry and crystal growth. As an inorganic salt of hydrazine, it falls directly under tariff item 2825.10.00.
Hydroxylamine Free Base
Hydroxylamine free base (NH2OH) is a chemically defined inorganic compound used in chemical reductions and as a pharmaceutical intermediate. It is the parent hydroxylamine compound and is classified under tariff item 2825.10.00.
Hydroxylamine Hydrochloride
Hydroxylamine hydrochloride (NH2OH·HCl) is a white crystalline inorganic salt of hydroxylamine, used as a reducing agent in photography and pharmaceuticals. It qualifies under tariff item 2825.10.00 as an inorganic salt of hydroxylamine.