Hyperoside (Quercetin-3-O-Galactoside) from China
Hyperoside, or quercetin-3-O-galactoside, is a flavonoid glycoside from Hypericum perforatum, used as a standardized marker for St. John's Wort quality control. It is classified under tariff item 2938.90.00.
Duty Rate — China → Canada
0%
Import Tips
• Ensure hyperoside is a separate chemically defined compound for classification
• If used as a reference standard, provide documentation of its purity
• Check if any import permits are needed for plant-derived substances