Quinidine Sulfate from Japan

Quinidine sulfate is a cinchona alkaloid derivative containing a quinoline ring system, used primarily as an antiarrhythmic drug for treating heart rhythm disorders. It falls under HTS 2933.49.26.00 as a quinoline-based heterocyclic compound classified as a drug, not elsewhere specified. This pure chemical form is imported for pharmaceutical manufacturing or compounding.

Duty Rate — Japan → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• Provide certificates of analysis confirming purity and quinoline structure to avoid reclassification under Chapter 30 finished pharmaceuticals

• Ensure DEA registration if importing quantities subject to controlled substance regulations, as quinidine is a Schedule IV drug

• Label shipments clearly as 'pharmaceutical reference standard' to prevent customs confusion with finished dosage forms