Pharmaceutical Guaifenesin API from China
Active pharmaceutical ingredient guaifenesin (3-(2-methoxyphenoxy)-1,2-propanediol) for mucolytic formulations. Meets Chapter 29 note (a) as separate chemically defined aromatic ether-alcohol. Bulk import for cough syrup and tablet production.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Submit FDA import alert 99-30 exemption documentation for API clearance
• Label containers with CAS 93-14-1, molecular formula C10H14O4, and purity statement
• Segregate from finished drugs to avoid Chapter 30 classification during customs exam