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Tiobutramine (active pharmaceutical ingredient) from Canada

Tiobutramine is an organo-sulfur veterinary drug intermediate with thio-butyl side chain for animal health applications. Sulfur-carbon direct linkage qualifies it under heading 2930 organo-sulfur compounds. Falls in drug subheading 2930.90.92.35 despite veterinary focus.

Duty Rate — Canada → United States

13.7%

Rate breakdown

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

Import Tips

Distinguish from human drugs with veterinary labeling to avoid FDA human drug pathways

Provide target species documentation for CVM import alerts

Bulk chemical appearance common pitfall; use pharma-grade COA

Tiobutramine (active pharmaceutical ingredient) from Canada — Import Duty Rate | HTS 2930.90.92.35