p-Coumaric Acid Research Grade from China
p-Coumaric acid (4-hydroxycinnamic acid), a key hydroxycinnamic acid, is classified under HTS 2918.29.2000 matching the heading's specific naming. High-purity research grade for lab use in antioxidant studies.
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
• Include NMR spectrum confirming trans-isomer (E)-configuration, CAS 7400-08-0
• Small quantities (<1kg) need lab chemical declaration; avoid consumer packaging
• Test for heavy metals (<20ppm) per research chemical standards