Ketoconazole Base
Ketoconazole contains unfused imidazole ring as part of its broad-spectrum antifungal structure. Classifies as bulk API under HTS 2933.29.90.00 for other imidazole compounds.
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Import Tips & Compliance
• Polymorph characterization (Form I vs II) affects bioavailability declaration
• Hepatotoxicity data inclusion recommended for Customs review
Related Products under HTS 2933.29.90.00
Metronidazole USP
Metronidazole is a synthetic nitroimidazole derivative used primarily as an antibiotic for treating anaerobic bacterial and protozoal infections. It contains an unfused imidazole ring in its structure, qualifying it under HTS 2933.29.90.00 as a heterocyclic compound with nitrogen hetero-atoms only, specifically other unfused imidazole ring compounds.
Cimetidine Base
Cimetidine is an imidazole-containing histamine H2-receptor antagonist used to treat peptic ulcers and GERD. As a bulk pharmaceutical chemical with unfused imidazole ring, it falls under HTS 2933.29.90.00 for other heterocyclic compounds with nitrogen hetero-atoms only.
4-Nitroimidazole
4-Nitroimidazole serves as a synthetic intermediate for nitroimidazole antibiotics like metronidazole. Its unfused imidazole ring with nitro substitution places it under HTS 2933.29.90.00 as other nitrogen-heterocyclic compounds.
Histamine Dihydrochloride
Histamine dihydrochloride, containing imidazole ring, used in pharmaceutical standards and research. Falls under HTS 2933.29.90.00 as a chemically defined compound with unfused imidazole ring and nitrogen hetero-atoms.
2-Methylimidazole
2-Methylimidazole is an alkyl-substituted imidazole used as curing agent in epoxy resins and pharmaceutical intermediate. Classified under HTS 2933.29.90.00 for unfused imidazole ring compounds.
Clotrimazole USP
Clotrimazole is an imidazole antifungal agent containing unfused imidazole ring in its structure. Bulk API form classifies under HTS 2933.29.90.00 as other heterocyclic nitrogen compounds.