Pharmaceutical Sulfamerazine Granules from China
Sulfamerazine granules represent the enumerated sulfonamide in micronized form for improved bioavailability, classified under HTS 2935.90.4200. These pharmaceutical granules maintain chemical identity as separate organic compounds per Chapter 29 note 2(a). Used in compounding oral suspensions for pediatric infections.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include particle size distribution (PSD) analysis and bulk density certificates for granule specifications
• Granulation doesn't affect chemical classification; remains bulk API under 2935 per chapter notes
• Verify no excipient binders exceed trace levels to maintain pure compound status