Nimorazole USP
Nimorazole USP is a 5-nitroimidazole derivative used as a radiosensitizer in cancer therapy. Its unfused imidazole ring places it in tariff item 2933.29.00 as a nitrogen heterocyclic compound.
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 nitro group alters the ring classification
Other nitrogen heterocycles may apply if the compound is not considered a simple unfused imidazole.
If imported as a finished pharmaceutical product
Retail-packaged medicaments are classified in Chapter 30 per section note 2.
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
• Verify the product is in USP grade and not mixed with excipients, as pure compounds are required for this tariff item
• Keep records of the chemical structure to support classification
Related Products under Tariff item 2933.29.00
2-Imidazolidinethione (Ethylene Thiourea) Crystals
Crystalline ethylene thiourea (2-imidazolidinethione), a heterocyclic compound containing an unfused imidazole ring. It is used as a chemical intermediate in the synthesis of fungicides and as an accelerator in rubber processing.
2-Phenyl-4-Methylimidazole
2-Phenyl-4-methylimidazole, a modified aromatic imidazole derivative with a phenyl group at the 2-position and a methyl group at the 4-position. Used in photographic chemicals and as a chemical intermediate.
2-Phenylimidazole
2-Phenylimidazole, a heterocyclic compound with an unfused imidazole ring and a phenyl group at the 2-position. Used as a chemical intermediate in various applications.
2-Phenylimidazole Hydrochloride Salt
2-Phenylimidazole hydrochloride salt, a water-soluble form of 2-phenylimidazole for pharmaceutical applications. Per Chapter 29 Note 5, salts are classified with the parent organic compound.
2-Phenylimidazole Technical Grade
Technical grade 2-phenylimidazole (95-98% purity) used in epoxy resin curing agents and corrosion inhibitors. It is a heterocyclic compound with an unfused imidazole ring.
Butoconazole Nitrate
Butoconazole Nitrate is an imidazole antifungal agent featuring an unfused imidazole ring in its aromatic heterocyclic structure. It falls under tariff item 2933.29.00 for other heterocyclic compounds with nitrogen hetero-atoms only.