Sulfaguanidine Crystals from Mexico
Sulfaguanidine, sparingly soluble for local gut action, treats bacillary dysentery and pre-surgical bowel prep. Classifies HTS 2935.90.4800 as sulfonamide anti-infective meeting Chapter 29(a) chemically defined compound criteria. Guanidine substitution provides unique solubility profile.
Duty Rate — Mexico → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Solubility <0.1mg/ml documentation distinguishes from systemic sulfonamides
• Crystal habit analysis prevents polymorphic purity issues
• Historical use documentation supports continued drug status