High-Purity Ethoxyquin USP Grade
High-purity ethoxyquin (greater than 98% purity) meeting USP standards, used as a reference standard and research chemical. As a separate chemically defined quinoline compound, it is classified under tariff item 2933.49.00, which covers other quinoline or isoquinoline ring-system compounds.
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 a mixture or contains additives beyond a pure compound
Mixtures not meeting the criteria for Chapter 29 would fall under residual chemical products.
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
• Ensure the product is accompanied by a certificate of analysis confirming purity above 98% to support classification
• Verify whether the product qualifies for duty relief under the Customs Tariff's provisions for scientific or research purposes
• Keep records of the end use to demonstrate it is not for retail sale
Related Products under Tariff item 2933.49.00
4,7-Dichloroquinoline
4,7-Dichloroquinoline is a heterocyclic organic compound featuring a quinoline ring system with chlorine atoms at the 4 and 7 positions. It is a separate chemically defined compound, qualifying under Chapter 29 Note 1(a) as a product of heading 29.33. This compound is primarily used as a synthetic intermediate in the production of pharmaceuticals and agrochemicals.
4,7-Dichloroquinoline 98% Technical Grade
Technical grade 4,7-dichloroquinoline with 98% purity is a separate chemically defined organic compound containing a quinoline ring system. It falls under Chapter 29 Note 1(a) as a product of heading 29.33. This compound is used as a synthetic intermediate for agrochemicals and pharmaceuticals.
4,7-Dichloroquinoline Hydrochloride Salt
4,7-Dichloroquinoline hydrochloride salt is an inorganic salt of an organic compound with a quinoline ring system. Under Chapter 29 Note 5(C)(1), inorganic salts of organic compounds are classified in the heading appropriate to the organic compound. Therefore, it is classified under heading 29.33.
4,7-Dichloroquinoline in Ethanol Solution 10% w/v
A 10% w/v solution of 4,7-dichloroquinoline in ethanol is a separate chemically defined compound dissolved in a solvent. The ethanol solution is a normal and necessary method for safe transport, as allowed under Chapter 29 Note 1(e). The solvent does not make the product suitable for a specific use, so it remains classified under heading 29.33.
4,7-Dichloroquinoline Stabilized with Antioxidant
Stabilized 4,7-dichloroquinoline with an added antioxidant is a separate chemically defined compound with a quinoline ring system. The stabilizer is necessary for preservation or transport, as permitted under Chapter 29 Note 1(f). The addition does not make the product suitable for a specific use, so it remains classified under heading 29.33.
4,7-Dichloroquinoline with Anti-Dusting Agent
4,7-Dichloroquinoline powder treated with an anti-dusting agent is a separate chemically defined compound with a quinoline ring system. The addition of the anti-dusting agent is permitted under Chapter 29 Note 1(g) as it facilitates safe handling without making the product suitable for a specific use. It remains classified under heading 29.33.