Flavin Mononucleotide (FMN) from China
FMN, a coenzyme derivative of Riboflavin used primarily as Vitamin B2 in biochemical and nutritional applications. This product qualifies under HTS 2936.23.00.00 as a chemically defined Vitamin B2 derivative for vitamin use, not excluded by Chapter 29 notes on inorganic salts or mixtures.
Duty Rate — China → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include biochemical assay results proving vitamin equivalence; ensure no metal coordination triggering Chapter 29 note 3(C)(3); declare correctly to avoid reclassification as research chemical