</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Valproic Acid USP Grade from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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