(R)-α-Amino-1,4-Cyclohexadiene-1-Acetic Acid from Mexico
(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 — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)