Guaiacol Glycerol Ether from China
Guaiacol glycerol ether is a specialized derivative where guaiacol is ether-linked to glycerol, used in pharmaceutical formulations for expectorant properties. Classified under HTS 2909.50.20.00 as it maintains the core guaiacol ether-phenol structure. Imported for synthesis of advanced respiratory therapeutics.
Duty Rate — China → United States
43%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide reaction pathway documentation showing derivation from guaiacol base structure to support classification
• Test for glycerol content; excess may trigger reclassification as glycerol ether-alcohol under different provisions
• Include stability data confirming no decomposition products that alter chemical definition