Imidazole Buffer Reagent ACS Grade
ACS-certified Imidazole used as a buffering agent in biochemical assays and protein purification, under HTS 2933.29.60.00 for its unfused imidazole structure. Essential in lab pH control between 6.0-7.0.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If diagnostic reagent kit component
Imidazole in prepared diagnostic kits falls under Chapter 38 reagents for analysis.
If containing metal salts like zinc imidazole
Organo-inorganic metal complexes classify under heading 2931 later in chapter order.
If as hydrogen chloride salt (imidazole HCl)
Inorganic acid salts of organics may shift to Chapter 28 per chapter note on salts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include lot-specific CoA for trace analysis compliance; ship under proper temperature control to prevent degradation; declare exact CAS 288-32-4 to avoid mixture misclassification
Related Products under HTS 2933.29.60.00
Imidazole (C3H4N2)
Imidazole is a five-membered heterocyclic aromatic compound with two nitrogen atoms, classified under HTS 2933.29.60.00 as a compound containing an unfused imidazole ring. It serves as a fundamental building block in organic synthesis for pharmaceuticals and agrochemicals.
1H-Imidazole Pharmaceutical Grade
High-purity 1H-Imidazole used in synthesis of antifungal drugs like clotrimazole, classified under HTS 2933.29.60.00 for unfused imidazole rings. Meets USP standards for medicinal intermediate production.
Glyoxal Bis-Imidazole Precursor
Pure Imidazole serving as precursor for glyoxal bis(2-hydroxyanil), a photographic chemical, classified in HTS 2933.29.60.00 as unfused imidazole. Used in dye synthesis for imaging applications.
4-Nitroimidazole Intermediate
Imidazole with nitro group at position 4, but primarily classified as imidazole under HTS 2933.29.60.00 per chapter notes on derivatives. Key for metronidazole antibiotic synthesis.
Imidazole Corrosion Inhibitor Base
Technical-grade Imidazole used as base for copper corrosion inhibitors in industrial coolants, under HTS 2933.29.60.00 for unfused ring structure. Forms complexes with metal surfaces.
2-Methylimidazole Catalyst
2-Methylimidazole, a alkyl-substituted imidazole used as epoxy resin curing catalyst, classified under HTS 2933.29.60.00 as 'other' imidazole. Promotes cross-linking in polymer production.