2-(4-Aminobenzoyl)thiophene
2-(4-Aminobenzoyl)thiophene is an aromatic amino-ketone with a thiophene heterocycle, where the ketone oxygen function and amino group determine classification. Despite the heterocyclic ring, the amino-ketone functionality takes precedence under this tariff item. It is used as a research chemical in organic synthesis.
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 heterocyclic structure is considered the primary characteristic
Nucleic acids and other heterocyclic compounds are classified in Chapter 29 under heading 29.34.
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
• Provide a detailed chemical structure and CAS number on the customs declaration to avoid misclassification
• Confirm whether the product is for research use only, as this may affect documentation requirements
• Check if the product is subject to the Canadian Environmental Protection Act (CEPA) for new substances
Related Products under Tariff item 2922.39.00
1-(2-Aminophenyl)ethanone
1-(2-Aminophenyl)ethanone, also known as o-aminoacetophenone, is an ortho-amino aromatic ketone used as a precursor in indole and quinoline syntheses. It features a single oxygen function (ketone) and an amino group, placing it under tariff item 2922.39.00. The product is a separate chemically defined compound under Chapter 29 note 1(a).
1,4-Bis(1-anthraquinonylamino)anthraquinone
1,4-Bis(1-anthraquinonylamino)anthraquinone is a complex aromatic amino-quinone with three anthraquinone units linked by amino bridges. It is a chemically defined compound, classified under tariff item 2922.39.00 as 'Other' amino-quinones, not more specifically named.
1,4-Dimesidinoanthraquinone
1,4-Dimesidinoanthraquinone is an aromatic amino-quinone with mesityl-substituted imino groups on the anthraquinone core. It is a chemically defined compound, classified under tariff item 2922.39.00 as 'Other' amino-quinones, used as an intermediate for dyes and pigments.
1-Amino-2,4-dibromoanthraquinone
1-Amino-2,4-dibromoanthraquinone is a chemically defined aromatic amino-quinone compound, featuring an amino group at position 1 and bromine atoms at positions 2 and 4 on the anthraquinone core. It falls under tariff item 2922.39.00 as an 'Other' amino-quinone, not more specifically covered elsewhere in the subheading.
1-Amino-2,4-Dibromoanthraquinone (99% Pure Technical Grade)
Technical grade 1-Amino-2,4-dibromoanthraquinone at 99% purity is a separate chemically defined compound, with impurities allowed under Chapter 29 note 1(a). It is an aromatic amino-quinone, classified under tariff item 2922.39.00 as 'Other' amino-quinones.
1-Amino-4-bromo-2-methylanthraquinone
1-Amino-4-bromo-2-methylanthraquinone is a chemically defined aromatic amino-quinone with bromine and methyl substituents. It is classified under tariff item 2922.39.00 as 'Other' amino-quinones, serving as an intermediate in vat dye production.