Bulk Rochelle Salt Dihydrate USP from Japan
Pharmaceutical bulk potassium sodium tartrate tetrahydrate (dihydrate formula KNaC4H4O6·4H2O) meeting USP monograph. Classifies under HTS 2918.13.3000 as the specifically named Rochelle salt of tartaric acid. Used in bulk for tablet compression and syrup formulation.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit USP monograph compliance certificate with assay 99.0-102.0% and water content 21.0-27.0%
• Use supersacks with inner food-grade polyethylene liners for bulk shipments
• Validate dihydrate crystal form via XRD if questioned; anhydrous form would reclassify