Alkaloids of cinchona and their derivatives; salts thereof
Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives: > Alkaloids of cinchona and their derivatives; salts thereof
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2939.20.00
Quinine Sulfate Dihydrate
Quinine sulfate dihydrate is a salt of the cinchona alkaloid quinine, used primarily as an antimalarial drug and for treating leg cramps. It falls under HTS 2939.20.00 as a derivative salt of cinchona alkaloids, fitting chapter 29's scope for chemically defined organic compounds and their salts. This white crystalline powder is typically imported in bulk for pharmaceutical manufacturing.
Quinidine Sulfate
Quinidine sulfate is a cinchona alkaloid salt used as an antiarrhythmic agent to treat heart rhythm disorders. Classified under HTS 2939.20.00 as a salt derivative of cinchona alkaloids, it meets chapter 29 requirements for separate chemically defined organic compounds. Imported as a fine powder for compounding into cardiac medications.
Cinchonidine Sulfate
Cinchonidine sulfate, derived from cinchona bark, serves as an intermediate in organic synthesis and alkaloid resolution. It qualifies for HTS 2939.20.00 as a salt of cinchona alkaloids, aligning with chapter notes for chemically defined compounds and their salts. Typically imported as a research chemical or API precursor.
Quinine Hydrochloride
Quinine hydrochloride is the hydrochloride salt of quinine, used intravenously for severe malaria treatment. It is classified under HTS 2939.20.00 per chapter note (C)(1) for inorganic salts of organic compounds following the parent alkaloid heading. This soluble salt form facilitates medical administration.
Quinine Gluconate
Quinine gluconate is a gluconate salt of quinine used in intramuscular malaria treatments with reduced toxicity. HTS 2939.20.00 applies as a salt derivative of cinchona alkaloids per chapter notes on salt classification following the organic base. Imported for hospital pharmacy compounding.
Cinchonine Hydrochloride
Cinchonine hydrochloride, a salt from cinchona, acts as a chiral resolving agent in pharmaceutical synthesis. Classified in HTS 2939.20.00 as a chemically defined salt of cinchona alkaloids per chapter 29 scope. Used in laboratories for asymmetric synthesis applications.
Quinidine Gluconate
Quinidine gluconate treats atrial fibrillation via oral administration as a cinchona alkaloid salt. Falls under HTS 2939.20.00 following chapter salt classification rules for organic bases. Bulk imported for sustained-release tablet production.
Tonic Water Flavoring Base (Quinine)
Concentrated quinine salt solution used as flavoring base for tonic water production, providing characteristic bitter taste. Classified under HTS 2939.20.00 when imported as chemically defined alkaloid salt meeting chapter note (d) for aqueous solutions. Diluted solely for safe transport, not specific end-use.
Quinine Base (Anhydrous)
Pure anhydrous quinine base extracted from cinchona, used to manufacture various quinine salts. HTS 2939.20.00 covers natural cinchona alkaloids per heading description, as a separate chemically defined compound. Imported as off-white powder for downstream pharmaceutical processing.
Cinchonine Base
Cinchonine base, the free alkaloid from cinchona bark, used in stereoselective organic reactions. Qualifies for HTS 2939.20.00 as a natural cinchona alkaloid, chemically defined per chapter notes. Research quantities imported for asymmetric catalysis.
Quinidine Base
Quinidine base, the dextrorotatory cinchona alkaloid, precursor for antiarrhythmic drugs. Classified HTS 2939.20.00 as natural/reproduced cinchona alkaloid per full heading scope. Bulk powder for salt formation in pharma.
Quinine Monohydrate
Quinine monohydrate contains one water molecule per quinine alkaloid, used in antimalarial formulations. HTS 2939.20.00 includes hydrated forms as chemically defined cinchona derivatives meeting chapter stability provisions. Common bulk import for tablet coating.
Cinchonidine Base
Cinchonidine base from cinchona used as resolving agent for racemic acids in pharma synthesis. HTS 2939.20.00 classification for chemically pure natural alkaloid. Laboratory and industrial synthesis import.
Quinidine Hydrochloride Monohydrate
Hydrated hydrochloride salt of quinidine for cardiac drug production. Meets HTS 2939.20.00 as cinchona salt derivative with stabilizing water per chapter note (f). Soluble form for injectables.
Synthetic Quinine Sulfate
Laboratory-synthesized quinine sulfate identical to natural, used in antimalarials. HTS 2939.20.00 explicitly includes alkaloids 'natural or reproduced by synthesis' and salts thereof. Indistinguishable by structure from bark-derived.