D(-)-p-Hydroxyphenylglycine Potassium Salt from Mexico
Potassium salt derivative of d(-)-p-Hydroxyphenylglycine, fitting HTS 2922.50.11.00 as an inorganic salt of a chemically defined aromatic amino-acid-phenol. Used in bioprocesses for antibiotic side-chain synthesis.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
• Test for heavy metals per USP standards; impurities >ppm levels trigger FDA scrutiny
• Use NA 1759 UN number for transport; verify IMDG compliance for ocean freight
• Document as 'not for human consumption' to sidestep Chapter 30 finished product rules