Chloroquine Phosphate USP
Chloroquine phosphate is a 4-aminoquinoline compound used for malaria prophylaxis and treatment, featuring a quinoline ring with chlorine substitution. It qualifies for HTS 2933.49.70.00 as a heterocyclic nitrogen compound with quinoline structure, imported as pure API for drug formulation. Halogenated quinoline derivatives are included per chapter notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by amino-function over quinoline
Amino acid derivatives sometimes classify under oxygen/nitrogen function headings before heterocyclics.
If as immunological product or vaccine sera
Chapter 29 excludes immunological products of heading 3002.
If azepine-fused quinoline structure
Different ring fusion systems have specific subheadings within 2933.
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Import Tips & Compliance
• FDA DMF registration required for APIs; provide impurity profile showing quinoline purity >99%
• Declare phosphate salt formation explicitly; customs applies Chapter 29 note (C) for organic salts
• Avoid pitfall of bulk packaging resembling finished drugs; use industrial drums, not consumer packs
Related Products under HTS 2933.49.70.00
8-Hydroxyquinoline
8-Hydroxyquinoline is a bidentate chelating agent and antiseptic containing unfused quinoline ring with phenolic hydroxy group. HTS 2933.49.70.00 applies as nitrogen hetero-atom heterocyclic compound meeting chapter purity requirements. Used in metal complex formation and pharmaceutical intermediates.
Prazosin Hydrochloride
Prazosin hydrochloride is a quinazoline derivative (fused system reducible to quinoline analysis) used as alpha-blocker for hypertension, containing nitrogen heterocycles. Classifies under HTS 2933.49.70.00 as other quinoline-related compound not further specified. API form for tablet production.
Quinidine Sulfate USP
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 2933.49.70.00 as a quinoline-based heterocyclic compound with nitrogen hetero-atoms only, not further fused or specified elsewhere in the heading. This pure chemical form is imported for pharmaceutical manufacturing and meets chapter 29 requirements for separate chemically defined organic compounds.
Quinine Hydrochloride Dihydrate
Quinine hydrochloride dihydrate is a salt of the quinoline alkaloid quinine, used in antimalarial treatments and tonic water production. Classified under HTS 2933.49.70.00 as a quinoline ring-system compound with nitrogen hetero-atoms, in salt form per Chapter 29 note on organic salts. This chemically defined compound is imported for both pharmaceutical and food/beverage applications.
Primaquine Phosphate
Primaquine phosphate is a synthetic 8-aminoquinoline antimalarial drug targeting liver-stage malaria parasites, containing the requisite quinoline ring system. Falls under HTS 2933.49.70.00 as an other quinoline heterocyclic with nitrogen hetero-atoms only. Imported as high-purity chemical for tablet manufacturing.
Mefloquine Hydrochloride
Mefloquine hydrochloride is a quinoline methanol derivative used for malaria chemoprophylaxis, featuring a 4-quinoline ring with trifluoromethyl substitution. Classified in HTS 2933.49.70.00 as a non-fused quinoline heterocyclic nitrogen compound per chapter definitions. This API is imported for solid oral dosage production.