Syringic Acid from China
Syringic acid (4-hydroxy-3,5-dimethoxybenzoic acid) falls under HTS 2916.39.46.00 as an aromatic monocarboxylic acid per additional U.S. note 3 to section VI. Utilized in antioxidant research and natural product synthesis.
Duty Rate — China → United States
44%
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
• Natural product-derived requires HPLC chromatogram showing single peak
• Light/heat sensitive; specify cool, dark storage conditions
• CAS 530-57-4 verification prevents natural extract classification