Phenylalanine Methyl Ester Hydrochloride from China
Phenylalanine methyl ester hydrochloride is the ester salt of phenylalanine, classified in HTS 2922.49.37.00 per note 3(A) with the parent amino-acid. The ester maintains the oxygen-function amino-compound nature. Used as protected amino acid in solid-phase peptide synthesis.
Duty Rate — China → United States
31.5%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify esterification confirmed by ester carbonyl IR peak; salts classified with parent per note 3(C)(1)
• Handle as corrosive solid (UN 3261); proper Hazard Class 8 labeling required