Pharma-Grade Maleic Anhydride Crystals from Mexico
Pharmaceutical grade maleic anhydride crystals with <10 ppm heavy metals, under HTS 2917.14.5000 as pure acyclic anhydride. Intermediate for maleate salt formation in drug synthesis.
Duty Rate — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide USP/EP certificate even though tariff remains Chapter 29 chemical
• Heavy metals analysis (<10 ppm) prevents Chapter 28 inorganic classification
• File FDA prior notice for human pharmaceutical intermediate imports