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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as cyclic alcohol derivative
Alcohol-function compounds classified heading 2906 before alkaloids.
If chiral ligand mixture for catalysis
Catalyst preparations not chemically defined classified mixtures.
If metal complex with cinchonidine ligand
Organo-metallic compounds classified by metal per note 3(C)(3).
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Import Tips & Compliance
• Provide specific rotation [-100° to -115°] confirming natural origin
• GC-MS confirmation of quinuclidine ring system
• Stability data under inert atmosphere storage
Related Products 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.