Valproic Acid USP Grade from China
Pharmaceutical-grade valproic acid meeting United States Pharmacopeia standards, used primarily as an active ingredient in antiepileptic medications. It is a saturated acyclic monocarboxylic acid classified under HTS 2915.90.14.00 due to its specific chemical structure as 2-propylpentanoic acid. This pure form contains no impurities beyond pharmacopeial limits and is supplied as a colorless liquid.
Duty Rate — China → United States
125%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.04.6095.8%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
• Obtain FDA Drug Master File (DMF) and Certificate of Analysis (CoA) to verify USP compliance; ensure proper hazardous material declaration for transport as a flammable liquid
• Avoid misclassification by confirming purity exceeds 99% without added stabilizers