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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If high coal tar impurity content
If impurities like naphthalene >20%, may be classified as coal tar distillates rather than pure organic compound
If purity below 90% with multiple impurities
Chemical mixtures not meeting 'separate chemically defined' criteria fall under prepared chemical products
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Import Tips & Compliance
• Impurity profile (<2% naphthalene, anthracene) must be documented; exceeds this threshold risks Chapter 38 mixture classification
• Flexible Intermediate Bulk Containers (FIBCs) common for 25-1000kg imports; ensure UN-certified for hazardous solids
• TSCA pre-manufacture notification may be required for first-time US imports
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.
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.
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.