Sulfinpyrazone from Canada
Sulfinpyrazone, a specific pyrazolone derivative listed in HTS 2933.19.08.00, features an unfused pyrazole ring with aromatic modification. Primarily imported as a pharmaceutical intermediate for anti-inflammatory drugs. Meets Chapter 29 criteria for chemically defined heterocyclic compounds.
Duty Rate — Canada → United States
15.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Pharma-grade requires GMP certification and detailed impurity profile in import documentation
• Verify not put up in dosage forms, which would classify under Chapter 30 pharmaceuticals
• Include stability data if stabilizers added, ensuring compliance with chapter note (f)