2-Phenylindole
A 2-arylated indole derivative explicitly named in HTS 2933.99.1200, featuring the characteristic five-membered nitrogen heterocycle fused to benzene. Used in pharmaceutical synthesis and materials science applications. Precise classification due to specific listing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other indole derivatives
Specific 2-phenyl substitution required for this listing.
If indole alkaloids
Natural product derivatives go to Chapter 29 subchapter XI.
If in research chemical mixtures
Laboratory preparations classified in Chapter 38.
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Import Tips & Compliance
• HPLC purity >98% certification required
• Pharma vs materials end-use documentation
• Light-sensitive handling instructions needed
Related Products under HTS 2933.99.12.00
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This is a specific aromatic heterocyclic compound containing nitrogen hetero-atoms only, explicitly listed in HTS 2933.99.1200. It is used as a pharmaceutical intermediate in the synthesis of antiviral and anticancer drugs. Its fused imidazole-pyridine ring structure qualifies it for classification under this subcategory of Chapter 29.
2,4-Di-tert-butyl-6-(benzotriazol-2-yl)phenol
A specific benzotriazole UV stabilizer explicitly named in HTS 2933.99.1200, featuring aromatic nitrogen heterocycles. Used in plastics, coatings, and adhesives to prevent UV degradation. The phenolic structure with fused triazole ring places it in this exact subcategory.
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A specific aromatic imidazole derivative explicitly listed in HTS 2933.99.1200, containing only nitrogen hetero-atoms. Used as a UV absorber in cosmetics, plastics, and pharmaceuticals. The fused benzene-imidazole structure determines its precise classification.
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A specific pyrazine derivative explicitly listed under HTS 2933.99.1200, featuring a six-membered aromatic nitrogen heterocycle. Used as a flavoring agent in food and in pharmaceutical formulations for circulatory disorders. Its precise chemical structure matches the tariff nomenclature.
Vinylcarbazole Monomer
N-Vinylcarbazole monomer, explicitly listed in HTS 2933.99.1200 as an aromatic nitrogen heterocyclic compound. Polymerized to form polyvinylcarbazole used in photoreceptors, electronics, and optical applications. The carbazole ring with vinyl group determines classification.