Sulfamerazine EP Standard from China
Sulfamerazine, a short-acting sulfonamide antibiotic explicitly listed in HTS 2935.90.4200, meets European Pharmacopoeia standards for purity. Used in combination therapies for urinary tract infections, this bulk API represents a classic Chapter 29 sulfonamide classification. The product qualifies due to its specific chemical definition and anti-infective drug application.
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
• Provide EP certificate of analysis and demonstrate US pharmacopeial equivalence for faster FDA clearance
• Declare exact isomeric purity as mixtures of isomers follow specific Chapter 29 note 2(b) classification rules
• Avoid misclassification by specifying human pharmaceutical use vs research chemical applications