Riboflavin Butyrate from Germany
An ester derivative of Riboflavin designed for enhanced bioavailability in vitamin supplements. Falls under HTS 2936.23.00.00 as a Vitamin B2 derivative used primarily as a vitamin, classified with the parent vitamin per Chapter 29 ester rules.
Duty Rate — Germany → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Document esterification process and bioavailability studies; confirm no solvent impurities violating Chapter 29 note (e); use correct CAS number for customs verification