1,4-Dioxane
1,4-Dioxane is a six-membered heterocyclic ring with two oxygen atoms in 1,4 positions, a separate chemically defined organic compound. It is used as a solvent in various industrial applications, and falls under tariff item 2932.99.00 as an 'other' oxygen heterocycle.
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 is an acyclic ether rather than a cyclic ether
Heading 29.09 covers ethers, but 1,4-dioxane is a cyclic ether.
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 product is a separate chemically defined compound, as Chapter 29 excludes mixtures
• If the product is used as a solvent, ensure it is not classified as a solvent under Chapter 38
• Be aware that 1,4-dioxane may be subject to environmental regulations under the Canadian Environmental Protection Act
Related Products under Tariff item 2932.99.00
1,3-Dioxolane
1,3-Dioxolane is a cyclic acetal with two oxygen hetero-atoms in a five-membered ring, a separate chemically defined organic compound. It is used in polymer production and as a solvent, and falls under tariff item 2932.99.00 as an 'other' oxygen heterocycle.
2-Hydroxy-3-dibenzofurancarboxylic acid
2-Hydroxy-3-dibenzofurancarboxylic acid is a specific aromatic heterocyclic compound with oxygen hetero-atoms only, featuring a dibenzofuran core with hydroxy and carboxylic acid substituents. It is a separate chemically defined compound, falling under tariff item 2932.99.00.
2-Hydroxy-3-dibenzofurancarboxylic acid, 98% purity
2-Hydroxy-3-dibenzofurancarboxylic acid at 98% purity is a technical grade product containing minor impurities but still chemically defined per Chapter 29 Note 1(a). It is an aromatic oxygen heterocycle, falling under tariff item 2932.99.00.
2-Methylbenzofuran Analytical Standard
2-Methylbenzofuran analytical standard is a certified reference material of 2-methyl substituted benzofuran at 1000 ppm in a solvent. The benzofuran core structure with oxygen as the sole hetero-atom qualifies it for tariff item 2932.99.00, and the solvent solution is permitted under Chapter 29 Note 1(e) for transport safety.
4-Hydroxycoumarin
4-Hydroxycoumarin is a hydroxylated benzopyrone heterocyclic compound with oxygen hetero-atoms only, aromatic in structure. It is a precursor for anticoagulant drugs, falling under tariff item 2932.99.00 as an 'Other' oxygen heterocycle.
Bendiocarb 98% Wettable Powder Active
Bendiocarb is a carbamate insecticide with a benzodioxole ring, an oxygen-containing heterocycle. This high-purity wettable powder is a separate chemically defined compound, classified under heading 29.32 as a heterocyclic compound with oxygen hetero-atoms only.