Quinidine Sulfate from Canada
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 — Canada → United States
Rate breakdown
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