Tioconazole API from China
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 — China → United States
41.2%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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