Quinidine Sulfate
Quinidine sulfate is a cinchona alkaloid derivative containing a quinoline ring system, used primarily as an antiarrhythmic medication to treat heart rhythm disorders. It falls under HTS 2933.49.60.00 as a heterocyclic compound with nitrogen hetero-atom(s) only in a quinoline ring-system, specifically listed in additional U.S. note 3 to section VI for certain pharmaceutical intermediates and products. This classification applies to its pure chemical form without further fusion.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as natural cinchona alkaloid extract
Natural alkaloids like quinidine from cinchona bark are classified under heading 2939 for vegetable alkaloids, rather than synthetic or isolated quinoline derivatives in 2933.
If formulated as finished dosage form like tablets
When put up in dosage forms with therapeutic indications, it moves from Chapter 29 chemicals to Chapter 30 medicaments.
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Import Tips & Compliance
• Verify inclusion in additional U.S. note 3 to section VI and provide Certificate of Analysis; comply with FDA import requirements for bulk pharmaceuticals; ensure proper hazardous material declaration if shipped in quantities exceeding thresholds
Related Products under HTS 2933.49.60.00
Quinine Hydrochloride
Quinine hydrochloride, a salt of the quinoline-containing alkaloid quinine, is used for malaria treatment and as a flavoring agent in tonic water. Classified under HTS 2933.49.60.00 due to its quinoline ring structure and listing in additional U.S. note 3 to section VI for specific heterocyclic compounds. The hydrochloride form remains under this heading per chapter notes on salts.
Quinidine Gluconate
Quinidine gluconate is a water-soluble salt form of quinidine with a quinoline ring, used orally for cardiac arrhythmia management. It is classified in HTS 2933.49.60.00 as a non-fused quinoline heterocyclic compound referenced in additional U.S. note 3 to section VI. Chapter note (C)(1) keeps organic salts with the parent compound.
Chloroquine Phosphate
Chloroquine phosphate contains a quinoline ring system and is used as an antimalarial and anti-inflammatory drug. This synthetic heterocyclic compound falls under HTS 2933.49.60.00 per additional U.S. note 3 to section VI, as a non-fused quinoline derivative. The phosphate salt retains classification with the parent quinoline base.
Primaquine Phosphate
Primaquine phosphate is a synthetic 8-aminoquinoline derivative used for radical cure of Plasmodium vivax malaria. It qualifies for HTS 2933.49.60.00 as a quinoline ring-system compound listed in additional U.S. note 3 to section VI, not further fused. The phosphate salt follows the parent compound per chapter classification rules.
Mefloquine Hydrochloride
Mefloquine hydrochloride features a quinoline ring and is employed as an antimalarial for prophylaxis and treatment. Classified under HTS 2933.49.60.00 for quinoline heterocycles specified in additional U.S. note 3 to section VI. Its structure fits non-fused quinoline systems without other heteroatoms.
Quinoline Yellow WS Dye Intermediate
Quinoline Yellow WS Dye Intermediate is a quinoline-based compound used in synthesizing the food colorant Quinoline Yellow. It falls under HTS 2933.49.60.00 as a non-fused quinoline heterocyclic listed in additional U.S. note 3 to section VI, prior to final dye formulation. Excluded from Chapter 32 coloring matters.