High Purity 2-Phenylimidazole (99%+)
High purity 2-phenylimidazole (99%+) is a pharmaceutical-grade compound used in antifungal drug synthesis and as a ligand in coordination chemistry. It is a separate chemically defined organic compound with an unfused imidazole ring, classifiable under tariff item 2933.29.00.
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 compound is used as a ligand but has a different ring structure.
Other nitrogen heterocyclic compounds may be classified under 2933.99.
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 meets pharmaceutical-grade purity standards and is not formulated for retail sale
• Provide a Certificate of Analysis and the CAS number to CBSA
• Check if the product requires a Drug Establishment Licence for pharmaceutical use
Related Products under Tariff item 2933.29.00
2-Imidazolidinethione (Ethylene Thiourea) Crystals
Crystalline ethylene thiourea (2-imidazolidinethione) is a heterocyclic organic compound containing an unfused imidazolidine ring with a sulfur atom. It is a key reagent in the synthesis of ethylenebisdithiocarbamate fungicides and rubber additives, qualifying under tariff item 2933.29.00 as an 'other' heterocyclic compound with nitrogen hetero-atom(s) only.
2-Phenyl-4-Methylimidazole
2-Phenyl-4-methylimidazole is a modified aromatic imidazole derivative with a phenyl group at the 2-position and a methyl group at the 4-position. It is used in photographic chemicals and contains an unfused imidazole ring, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2-Phenylimidazole
2-Phenylimidazole is a heterocyclic compound containing an unfused imidazole ring with a phenyl group at the 2-position. It is used as an epoxy resin curing agent and in chemical synthesis, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound with nitrogen hetero-atom(s) only.
2-Phenylimidazole Hydrochloride Salt
2-Phenylimidazole hydrochloride salt is a water-soluble form of 2-phenylimidazole, used in pharmaceutical applications. Per Chapter 29 Note 5, inorganic salts of organic compounds are classified with the parent organic compound, so this salt falls under tariff item 2933.29.00.
2-Phenylimidazole Technical Grade
Technical grade 2-phenylimidazole (95-98% purity) is used in epoxy resin curing agents and corrosion inhibitors. It is a chemically defined aromatic heterocyclic compound with an unfused imidazole ring, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.
Clotrimazole API
Clotrimazole API is an aromatic imidazole antifungal agent with an unfused imidazole ring structure. It is used in pharmaceutical formulations for topical and oral candidiasis treatment, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.