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.
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 carboxylic acid function is considered the primary characteristic
Carboxylic acids with oxygen functions are classified in heading 29.18, but the heterocyclic ring takes precedence under Chapter 29 Note 3.
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 not a salt or ester, which would be classified differently under Chapter 29 Note 5
• Provide a certificate of analysis showing the chemical structure and purity for CBSA
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.
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.
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.