Pharmaceutical Grade Mercuric Oxide from Mexico
High-purity mercuric oxide meeting USP standards for use in ophthalmic preparations and antiseptics. Still classified under HTS 2852.10.10.00 as the pure chemical compound despite pharmaceutical end-use. Purity exceeds 99.5% with controlled particle size for medical applications.
Duty Rate — Mexico → United States
10%
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
• Include FDA Drug Master File references even for bulk chemical import destined for pharma
• Validate against USP <231> heavy metals test methods for customs purity verification
• Separate from general chemical streams; pharma customs lanes require additional GMP documentation