(R)-α-Amino-1,4-Cyclohexadiene-1-Acetic Acid from China
(R)-α-Amino-1,4-cyclohexadiene-1-acetic acid is a chiral amino acid derivative explicitly named in HTS 2922.49.60.00, featuring amino and carboxylic acid oxygen functions. Used primarily in synthesis of enantiopure pharmaceuticals and fine chemicals. Classified here as an amino-acid other than those with multiple oxygen functions.
Duty Rate — China → United States
37.5%
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide stereochemical analysis (chiral HPLC) to confirm (R)-enantiomer identity matching the tariff description
• Include REACH/ TSCA registration docs for US import compliance as a research chemical
• Check for salt forms; classify with the acid per chapter note 3(C)(1)