Riboflavin Butyrate
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by butyric acid function
Saturated acyclic esters have separate headings, but vitamin primary use and Chapter 29 note 3(A) govern.
If in consumer food supplement mixtures
Retail food preparations containing vitamins exclude from pure Chapter 29 classification.
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Import Tips & Compliance
• Document esterification process and bioavailability studies; confirm no solvent impurities violating Chapter 29 note (e); use correct CAS number for customs verification
Related Products under HTS 2936.23.00.00
Riboflavin USP Powder
Pharmaceutical-grade Riboflavin (Vitamin B2) powder meeting USP standards, used primarily as a vitamin supplement in tablets and capsules. This chemically defined organic compound falls under HTS 2936.23.00.00 as unmixed Vitamin B2 for nutritional and therapeutic applications. It is synthesized for high purity in human dietary supplements.
Riboflavin 5'-Phosphate Sodium
The phosphorylated derivative of Riboflavin (Vitamin B2), used primarily as a vitamin in pharmaceutical injections and eye drops. Classified under HTS 2936.23.00.00 as a Vitamin B2 derivative meeting chapter requirements for chemically defined organic compounds used as vitamins. Essential for medical applications requiring water-soluble form.
Flavin Mononucleotide (FMN)
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.
Synthetic Riboflavin 98% Feed Grade
High-purity synthetic Riboflavin produced for animal nutrition, classified as unmixed Vitamin B2 under HTS 2936.23.00.00. Meets chapter requirements for reproduced-by-synthesis vitamins used primarily as such, suitable for livestock feed fortification.
Riboflavin Tetrabutyrate
Lipophilic ester derivative of Riboflavin for specialized vitamin delivery systems. HTS 2936.23.00.00 applies as a derivative used primarily as Vitamin B2, following Chapter 29 rules for ester classification with parent compound.
Pharma Grade Riboflavin Granules
Granulated Riboflavin USP for direct compression in tablet manufacturing, remains unmixed Vitamin B2 under HTS 2936.23.00.00. Physical form does not affect chemical classification as a provitamin/vitamin per chapter scope.