Sulfadiazine Sodium from China
Sulfadiazine sodium is the sodium salt of an organo-sulfur sulfonamide antibiotic used for toxoplasmosis and burns. As per Chapter 29 notes, inorganic salts of organic compounds classify with the organic base, retaining its 2930 organo-sulfur status. Included as a drug under 2930.90.92.35.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Document salt formation per Chapter Note 5(C)(1) to confirm classification with parent acid
• FDA requires sodium content verification to prevent hygroscopic degradation claims