Pharmaceutical Grade Thioglycolic Acid USP from Mexico
Ultra-pure thioglycolic acid meeting USP standards for pharmaceutical intermediates, classified under HTS 2930.90.4910. Qualifies as chemically defined organo-sulfur acid per Chapter 29 scope.
Duty Rate — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Submit Drug Master File (DMF) and USP certificate; comply with FDA import alert 99-30
• Endotoxin and heavy metals testing required for pharma grade; maintain <10ppm lead
• Segregate from cosmetic shipments to avoid contamination cross-alerts