Pharma Grade Carboxymethylcellulose USP Powder from Mexico
USP-compliant carboxymethylcellulose powder with minimum 90% CMC by weight, used in oral suspensions and eye drops. Primary form classification under HTS 3912.31.00.10 based on high polymer purity. Meets pharmacopeia standards for excipient use.
Duty Rate — Mexico → United States
16.4%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Supply USP/EP certificates and DSC purity scans; FDA prior notice for pharma imports
• Avoid pitfall of labeling as 'finished drug excipient' triggering Chapter 30