Sulfinpyrazone from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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)