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USP Grade Sodium Tripolyphosphate from Canada

United States Pharmacopeia (USP) grade STPP is a high-purity polyphosphate used in pharmaceutical formulations and as a pharmaceutical aid for controlled release. It qualifies under HTS 2835.31.00.00 as chemically defined sodium triphosphate. Purity exceeds pharmacopeia standards without organic admixtures.

Duty Rate — Canada → United States

11.4%

Rate breakdown

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

Import Tips

Submit USP certificate of analysis and DMF if for drug master file; FDA registration mandatory

Declare pharmacopeia grade explicitly to prevent downgrade to technical grade valuation

USP Grade Sodium Tripolyphosphate from Canada — Import Duty Rate | HTS 2835.31.00.00