Alkaloids of cinchona and their derivatives; salts thereof
Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives. > Alkaloids of opium and their derivatives; salts thereof: > Alkaloids of cinchona and their derivatives; salts thereof > Alkaloids of cinchona and their derivatives; salts thereof
Duty Rate (from China)
Products classified under Tariff item 2939.20
Cinchonidine Base
Cinchonidine base is a naturally occurring cinchona alkaloid, chemically defined and isolated from cinchona bark. It is used as a resolving agent for racemic acids in pharmaceutical synthesis, which aligns with the scope of tariff item 2939.20.00 covering alkaloids of cinchona and their derivatives.
2939.20.00Cinchonidine Sulfate
Cinchonidine sulfate is a salt of the cinchona alkaloid cinchonidine, formed with sulfuric acid. It serves as an intermediate in organic synthesis and alkaloid resolution, and is classified under tariff item 2939.20.00 as a salt of cinchona alkaloids per Chapter 29 Note 5(C)(1).
2939.20.00Cinchonine Base
Cinchonine base is a free alkaloid extracted from cinchona bark, used in stereoselective organic reactions. It is a chemically defined natural cinchona alkaloid, qualifying for tariff item 2939.20.00 which covers alkaloids of cinchona and their derivatives.
2939.20.00Cinchonine Hydrochloride
Cinchonine hydrochloride is a salt of the cinchona alkaloid cinchonine, used as a chiral resolving agent in pharmaceutical synthesis. It is classified under tariff item 2939.20.00 as a chemically defined salt of cinchona alkaloids, consistent with Chapter 29 salt classification rules.
2939.20.00Quinidine Base
Quinidine base is a dextrorotatory cinchona alkaloid used as a precursor for antiarrhythmic drugs. It falls under tariff item 2939.20.00 as a natural or synthetically reproduced cinchona alkaloid, per the heading's scope and Chapter 29 Note 1(a).
2939.20.00Quinidine Gluconate
Quinidine gluconate is a salt of quinidine, a cinchona alkaloid, used to treat atrial fibrillation. It is classified under tariff item 2939.20.00 as a salt of cinchona alkaloids, following Chapter 29 Note 5(C)(1) for inorganic salts of organic compounds.
2939.20.00Quinidine Hydrochloride Monohydrate
Quinidine hydrochloride monohydrate is a hydrated salt of quinidine, a cinchona alkaloid, used in cardiac drug production. It is classified under tariff item 2939.20.00 as a salt derivative of cinchona alkaloids, with the water of hydration considered an impurity or stabilizer per Chapter 29 Note 1(f).
2939.20.00Quinidine Sulfate
Quinidine sulfate is a salt of quinidine, a cinchona alkaloid, used as an antiarrhythmic agent. It is classified under tariff item 2939.20.00 as a salt derivative of cinchona alkaloids, meeting Chapter 29 requirements for chemically defined organic compounds.
2939.20.00Quinine Base (Anhydrous)
Quinine base (anhydrous) is a pure alkaloid extracted from cinchona, used to manufacture various quinine salts. It is classified under tariff item 2939.20.00 as a natural cinchona alkaloid, being a separate chemically defined compound per Chapter 29 Note 1(a).
2939.20.00Quinine Gluconate
Quinine gluconate is a salt of quinine, a cinchona alkaloid, used in intramuscular malaria treatments. It is classified under tariff item 2939.20.00 as a salt derivative of cinchona alkaloids, following Chapter 29 Note 5(C)(1) for salts of organic compounds.
2939.20.00Quinine Hydrochloride
Quinine hydrochloride is the hydrochloride salt of quinine, used intravenously for severe malaria treatment. It is classified under tariff item 2939.20.00 per Chapter 29 Note 5(C)(1), which directs inorganic salts of organic compounds to the heading of the organic compound.
2939.20.00Quinine Monohydrate
Quinine monohydrate is a hydrated form of the cinchona alkaloid quinine, used in antimalarial formulations. It is classified under tariff item 2939.20.00 as a chemically defined cinchona derivative, with the water of hydration considered a stabilizer per Chapter 29 Note 1(f).
2939.20.00Quinine Sulfate Dihydrate
Quinine sulfate dihydrate is a salt of the cinchona alkaloid quinine, used as an antimalarial drug and for treating leg cramps. It is classified under tariff item 2939.20.00 as a derivative salt of cinchona alkaloids, with the water of hydration considered a stabilizer per Chapter 29 Note 1(f).
2939.20.00Synthetic Quinine Sulfate
Synthetic quinine sulfate is a laboratory-synthesized salt identical to natural quinine sulfate, used in antimalarials. It is classified under tariff item 2939.20.00 as the heading explicitly includes alkaloids 'natural or reproduced by synthesis' and their salts.
2939.20.00Tonic Water Flavoring Base (Quinine)
Tonic water flavoring base is a concentrated quinine salt solution used as a flavoring base for tonic water production. It is classified under tariff item 2939.20.00 when imported as a chemically defined alkaloid salt, provided the solvent does not render it particularly suitable for a specific use per Chapter 29 Note 1(e).