Imidazole
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: > Other: > Other: > Other: > Imidazole
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified 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.
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.
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.
Imidazole pH Indicator Base
Imidazole employed as base for custom pH indicators in analytical chemistry, under HTS 2933.29.60.00 for its heterocyclic nitrogen structure. Titrates in acidic-basic transitions.
Histidine Synthesis Imidazole
Imidazole core for amino acid histidine synthesis in biotech, classified HTS 2933.29.60.00 as unfused ring compound. Intermediate in fermentation media production.
Ionic Liquid Imidazole Base
Imidazole as cation base for green solvent ionic liquids in chemical processing, under HTS 2933.29.60.00 for pure unfused structure. Forms [ImH]+ salts with low volatility.