High-Purity D(-)-p-Hydroxyphenylglycine p-Toluenesulfonate Salt from Mexico
p-Toluenesulfonic acid salt of D(-)-p-Hydroxyphenylglycine (>99.5% purity), HTS 2922.50.11.00 as organic acid salt of specified compound. Used in resolution of enantiomers.
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
• Chiral HPLC method validation
• TsOH counterion quantification
• Patent status for exclusivity claims