Other
Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives: > Alkaloids of cinchona and their derivatives; salts thereof > Other
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 2939.20.00.50
Quinine Sulfate Dihydrate
Quinine sulfate dihydrate is a salt derivative of the cinchona alkaloid quinine, used primarily as an antimalarial medication. It falls under HTS 2939.20.0050 as a derivative salt of cinchona alkaloids, specifically classified as 'other' within this subheading. This pure chemical compound is supplied for pharmaceutical manufacturing.
Quinidine Gluconate
Quinidine gluconate is the gluconic acid salt of quinidine, a cinchona alkaloid used for treating cardiac arrhythmias. Classified under HTS 2939.20.0050 as a salt derivative of cinchona alkaloids. This form enhances solubility for pharmaceutical applications.
Cinchonidine Sulfate
Cinchonidine sulfate is the sulfate salt of cinchonidine, a minor alkaloid from cinchona bark used in organic synthesis and as a chiral resolving agent. It qualifies under HTS 2939.20.0050 as 'other' cinchona alkaloid derivatives. Supplied as high-purity chemical intermediate.
Quinine Hydrochloride Dihydrate
Quinine hydrochloride dihydrate is a water-soluble salt form of quinine alkaloid from cinchona, used in parenteral antimalarial formulations. Falls under HTS 2939.20.0050 as other cinchona derivatives. The dihydrate form is standard for injectables.
Cinchonine Hydrochloride
Cinchonine hydrochloride is the hydrochloride salt of cinchonine alkaloid from cinchona bark, used as a precipitating agent and in resolution of racemates. Classified HTS 2939.20.0050 as other cinchona salt derivative. High purity for laboratory use.
Quinine Ethyl Carbonate
Quinine ethyl carbonate is an ester derivative of quinine alkaloid from cinchona, historically used in tonic water and pharmaceuticals. HTS 2939.20.0050 covers this as other cinchona derivative. Less common but still commercially available.
Quinidine Sulfate Dihydrate
Quinidine sulfate dihydrate is the principal antiarrhythmic salt form of quinidine from cinchona, used in oral solid dosage forms. Falls under HTS 2939.20.0050 as other cinchona derivatives. Pharmaceutical grade with defined hydrate.
Quinidine Hydrochloride
Quinidine hydrochloride is the soluble HCl salt of quinidine used in emergency cardiac treatment. Falls under HTS 2939.20.0050 as other cinchona alkaloid salt. Rapid dissolution profile for injectables.
Cinchonidine
Cinchonidine free base is the native alkaloid from cinchona bark, used as chiral catalyst precursor. HTS 2939.20.0050 covers this as other non-salt cinchona alkaloid. Oil-soluble form for asymmetric synthesis.
Quinine Base Anhydrous
Anhydrous quinine base is the pure alkaloid isolated from cinchona, used to manufacture all quinine salts. Classified HTS 2939.20.0050 as other cinchona alkaloid. Reference standard purity >99%.
Quinidine Base
Quinidine free base extracted from cinchona bark, precursor for all quinidine salts used in cardiology. HTS 2939.20.0050 as other cinchona alkaloid. High enantiomeric purity required.
Cinchonine Base
Cinchonine free base alkaloid from cinchona used in stereoselective synthesis and alkaloid research. Classified HTS 2939.20.0050 as other cinchona alkaloid. Research chemical grade.
Cinchonine Sulfate
Cinchonine sulfate is the sulfate salt of cinchonine alkaloid, used in analytical chemistry as alkaloid precipitant. Classified HTS 2939.20.0050 as other cinchona salt derivative. Typically 98%+ purity.
Quinine Monohydrochloride
Quinine monohydrochloride is the 1:1 HCl salt of quinine, used in veterinary medicine and some tonic formulations. HTS 2939.20.0050 as other cinchona derivative salt. Distinguished from dihydrate by stoichiometry.
Quinine Camphorsulfonate
Quinine camphorsulfonate is a chiral salt derivative combining quinine alkaloid with camphorsulfonic acid, used for resolution. HTS 2939.20.0050 as other cinchona salt derivative. Specific for asymmetric synthesis.