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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other fused nitrogen heterocyclics
Quinazoline fusion may qualify under later 2933 subheadings.
If in antihypertensive medicaments
Specific therapeutic finished products classify in Chapter 30.
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Import Tips & Compliance
• Orthostatic hypotension warnings in SDS; include clinical data
• Verify no further ring fusion beyond quinoline base per heading
• Bulk API only; finished generics go to 3004
Related Products under HTS 2933.49.70.00
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.
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.
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.