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Phenothiazine API USP Grade from Canada

Pure phenothiazine (C12H9NS), the parent compound of the ring system, imported as USP-grade active pharmaceutical ingredient. Classified under HTS 2934.30.27.00 as the base structure for drug synthesis.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Confirm >99% purity with HPLC certificate meeting Chapter 29 chemically defined compound requirements

Include intended downstream synthesis documentation to support drug classification

Avoid veterinary bulk packaging which might trigger different Chapter 30 provisions

Phenothiazine API USP Grade from Canada — Import Duty Rate | HTS 2934.30.27.00