Sulfamerazine from China
Sulfamerazine, intermediate-acting sulfonamide, penetrates CSF for meningitis treatment. Classifies HTS 2935.90.4800 as sulfonamide anti-infective meeting Chapter 29 purity standards. Used in combination with other sulfonamides.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• CSF penetration studies validate meningitis indication
• Triple sulfonamide compatibility data for combo therapies
• Batch uniformity testing prevents potency variation