Hyperoside (Quercetin-3-O-Galactoside) from Japan
Hyperoside, a quercetin galactoside from Hypericum perforatum, under HTS 2938.90.00.00. Standardized marker for St. John's Wort quality control.
Duty Rate — Japan → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify as USP/NF reference standard for herbal monograph
• Confirm galactose vs glucose sugar moiety
• Test for hyperforin interference in standardization