N-Ethylcarbazole
N-Ethylcarbazole features ethylation on the nitrogen hetero-atom of the carbazole ring system, qualifying as modified aromatic under HTS 2933.99.11.00. Widely used in organic electronics, photorefractive materials, and dye intermediates.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as other compounds containing unfused pyridine ring
Alternative interpretation of ring system could place in different 2933 subheading, though carbazole specifically identified
If N-substituent dominates classification
Nitrogen compounds with ether-like functions sometimes classified in 2909, but heterocyclic parent structure prevails
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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
• Chemical identity confirmed by CAS 86-28-2; provide HPLC purity certificate (>98%) for proper valuation
• DOT classification as combustible liquid if shipped in solution; bulk powder preferred for lower shipping costs
• Avoid packaging that suggests retail sale (consumer packaging) to prevent Chapter 38 reclassification
Related Products under HTS 2933.99.11.00
Carbazole Powder
Pure carbazole (C12H9N) is a tricyclic aromatic heterocyclic compound with nitrogen hetero-atom, classified under HTS 2933.99.11.00 as an aromatic heterocyclic compound. It appears as white to pale yellow flakes or powder, primarily used as an intermediate in dye and pigment production.
Carbazole Technical Grade 98%
Technical grade carbazole (98% purity) contains minor impurities but remains a separate chemically defined organic compound per Chapter 29 note (a), classified under HTS 2933.99.11.00. Primarily used in large-scale dye and agrochemical manufacturing.
4-Carbazoleboronic Acid
4-Carbazoleboronic acid retains the core carbazole heterocyclic structure with boronic acid substitution, classified as modified aromatic under HTS 2933.99.11.00 per Chapter 29 organo-inorganic compound rules. Essential Suzuki coupling reagent for pharmaceutical synthesis.
9H-Carbazole Flakes
9H-Carbazole in flake form is the standard commercial presentation of this aromatic heterocyclic compound, classified specifically under HTS 2933.99.11.00. Used extensively in production of carbazole violet pigments and pharmaceuticals.
3-Aminocarbazole
3-Aminocarbazole is a modified aromatic derivative of carbazole with an amino group substitution, maintaining the core heterocyclic nitrogen structure required by HTS 2933.99.11.00. Used as an intermediate in pharmaceutical and optical brightener synthesis.