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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If as prepared lab reagent with solvents
Diagnostic or analytical reagents classify in Chapter 38.
If with fluorescent groups for indicators
Synthetic luminophores excluded to Chapter 32.
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Import Tips & Compliance
• Ensure no added colorants violating chapter note (g); EPIRB declaration for lab use; purity >98% to avoid mixture status
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.
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.