Quercetin-3-O-Glucoside from China
Quercetin-3-O-glucoside is a flavonoid glycoside extracted from onions and apples, falling under HTS 2938.90.00.00 as a glycoside derivative. It serves as an antioxidant in nutraceuticals and functional foods.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit structural analysis confirming glycosidic bond to distinguish from aglycone flavonoids
• Declare as >95% purity to maintain Chapter 29 classification versus mixtures
• Avoid retail packaging; bulk powder imports classified here, not Chapter 21