p-Hydroxyphenyl Glycine Methyl Ester Hydrochloride from Mexico
Hydrochloride salt of the methyl ester derived from listed (R)-α-Amino-4-hydroxybenzene acetic acid, classifiable under HTS 2922.50.0700 per ester/salt rules in chapter note 3(A)(B). Used in peptide synthesis and pharmaceutical production.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Ester classifies with parent acid per Ch. 29 note 3(A); provide hydrolysis data linking to listed compound
• Controlled substance precursor monitoring; DEA declaration if applicable
• Avoid aqueous import; methanol residue <0.1% required