Econazole Nitrate USP from Japan
Econazole nitrate, a broad-spectrum imidazole antifungal drug, falls under HTS 2933.29.4500 due to its characteristic unfused imidazole ring structure. Used primarily in dermatological treatments for fungal infections of skin and nails.
Duty Rate — Japan → 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
• Provide polymorphic form characterization; nitrate salts prone to FDA scrutiny on crystal form stability
• Include forced degradation studies in submission; common detention cause is insufficient stability data
• Ensure proper nitrate content assay; over 0.1% impurities triggers import alert