Dimethoxymethane (Methylal)
Dimethoxymethane (methylal) is the dimethyl acetal of formaldehyde and an acyclic ether of methanol. Used as a solvent and chemical intermediate, it is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
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 classified as an acetal rather than an ether
Acetals have their own heading; verify the functional groups present.
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 chemical structure and purity to the CBSA
• Ensure the product is not classified under a more specific acetal heading
• Provide safety data sheets for handling and transport
Related Products under Tariff item 2909.19.00
1-Methoxy-2-Propanol (Propylene Glycol Monomethyl Ether)
1-Methoxy-2-propanol is an acyclic ether-alcohol derived from methanol and propylene glycol, used in paints and coatings. While ether-alcohols have separate provisions, this specific isomer falls under tariff item 2909.19.00 as an 'other' acyclic ether, being a chemically defined compound per Chapter 29 Note 1(a).
Butyl Methyl Ether
Butyl methyl ether is an acyclic mixed ether from butanol and methanol, used in organic synthesis and as a reaction medium. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
Diethyl Ether (Ethyl Ether)
Diethyl ether is a colorless, highly volatile acyclic ether derived from ethyl alcohol, used primarily as a solvent and in organic synthesis. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
Diisopropyl Ether
Diisopropyl ether is a branched acyclic ether from isopropanol, used as an extraction solvent and gasoline stabilizer. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
Ethyl Tert-Butyl Ether (ETBE)
Ethyl tert-butyl ether (ETBE) is an acyclic ether of ethanol and tert-butanol, used as a high-octane biofuel oxygenate. It is a chemically defined compound under Chapter 29 Note 1(a) and falls under tariff item 2909.19.00 as an 'other' acyclic ether.
Industrial MTBE Fuel Oxygenate
This industrial MTBE fuel oxygenate is a chemically defined acyclic ether (2-methoxy-2-methylpropane) used to oxygenate reformulated gasoline. It falls under tariff item 2909.19.00 as an 'other' acyclic ether, consistent with Chapter 29 Note 1(a) for separate chemically defined organic compounds.