Valproic Acid with Stabilizer from Mexico
Stabilized valproic acid containing an anticaking agent for safe transport, remaining a separate chemically defined compound. It qualifies for HTS 2915.90.14.00 under chapter note 2(f) as the stabilizer is solely for preservation without altering general use.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6095.8%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
• Document stabilizer as necessary per note 2(f) to avoid reclassification; ensure <1% additive
• Test for stability under import conditions to prevent degradation claims