Pharmaceutical Grade Mercuric Oxide from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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