p-Hydroxyphenyl Glycine Methyl Ester Hydrochloride from Canada
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 — Canada → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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