Tioconazole API from Mexico
Tioconazole, a 1-substituted imidazole antifungal under HTS 2933.29.4500, targets vaginal candidiasis through ergosterol binding. Its unfused imidazole ring defines its Chapter 29 chemical classification as a pharmaceutical drug substance.
Duty Rate — Mexico → United States
3.7%
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
• Vaginal absorption profile data required; FDA specific concerns for mucosal APIs
• Preservative efficacy testing mandatory for multi-dose container closure systems
• pH stability profile (4.0-7.0 range) documentation prevents import delays