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.
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 |
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 a separate chemically defined compound as per Chapter 29 Note 1
• Declare the correct 8-digit tariff item 2933.29.00
• Keep records of the chemical composition for CBSA verification
Related Products under Tariff item 2933.29.00
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.
Butoconazole Nitrate USP
Butoconazole Nitrate USP is an imidazole antifungal used for vulvovaginal candidiasis. Its unfused imidazole ring classifies it under tariff item 2933.29.00 as a nitrogen heterocyclic compound.