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Vinylpyridine Polymer Monomer from Canada

4-Vinylpyridine monomer contains an unfused pyridine ring and serves as raw material for ion-exchange resins and adhesives. HTS 2933.39.61 covers it via additional U.S. note 3 to section VI for regulated pyridines. Inhibitor-stabilized for polymerization control.

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

Include polymerization inhibitor certificate (MEHQ typically) and shelf-life data

Ship under nitrogen blanket; declare as UN1992 flammable liquid

TSCA notification required for new polymer manufacturing