2933.49.70.00/Quinidine Sulfate USP/Japan

Quinidine Sulfate USP from Japan

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.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Provide Certificate of Analysis (CoA) and pharmacopoeial compliance (USP/EP) documentation to verify purity and quinoline structure for customs classification

• Ensure DEA registration if quinidine is controlled; declare exact chemical identity to avoid reclassification under pharmaceutical headings