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2933.29.90.00/Histamine Dihydrochloride/Canada

Histamine Dihydrochloride from Canada

Histamine dihydrochloride, containing imidazole ring, used in pharmaceutical standards and research. Falls under HTS 2933.29.90.00 as a chemically defined compound with unfused imidazole ring and nitrogen hetero-atoms.

Duty Rate — Canada → United States

16.5%

Rate breakdown

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

• Include batch-specific potency assay confirming pharmacological activity

• Label as 'Research Use Only' to avoid FDA finished product requirements

• Salt form classifies with parent imidazole per Chapter 29 note 5(C)(1)

Histamine Dihydrochloride from Canada — Import Duty Rate | HTS 2933.29.90.00