Vitamin B2 (Riboflavin) and its derivatives
Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent: > Vitamins and their derivatives, unmixed: > Vitamin B2 (Riboflavin) and its derivatives
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified 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.
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.
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.
Riboflavin Sodium Phosphate
Water-soluble salt derivative of Riboflavin for IV and ophthalmic solutions. Classified HTS 2936.23.00.00 per Chapter 29 note 3(C)(1) with the organic vitamin compound, used primarily as Vitamin B2.
Food Grade Riboflavin Powder
FCC-grade Riboflavin for fortifying cereals, beverages, and infant formula. HTS 2936.23.00.00 covers this synthetic vitamin as a chemically defined compound used primarily as Vitamin B2, prior to food mixture.
Riboflavin for Cosmetics
High-purity Riboflavin derivative for skincare formulations acting as vitamin/colorant. Remains under HTS 2936.23.00.00 as Vitamin B2 primarily, not excluded to Chapter 32 coloring matters per chapter note 2(g).
Veterinary Riboflavin Injectable
Sterile Riboflavin solution for animal therapeutics, bulk form classified as unmixed Vitamin B2 under HTS 2936.23.00.00. Distinguish from finished vet medicaments by bulk packaging and concentration.
Microencapsulated Riboflavin
Riboflavin microencapsulated for controlled release in supplements, principal compound remains Vitamin B2 under HTS 2936.23.00.00. Encapsulation considered stabilizer per Chapter 29 note (f) if not rendering specific use.
Riboflavin Acetate Derivative
Acetylated Riboflavin for research and specialized nutrition, classified HTS 2936.23.00.00 as Vitamin B2 derivative. Ester follows parent vitamin per Chapter 29 note 3(A/B).
Bulk Riboflavin for Infant Formula
Pharma/FCC Riboflavin designated for infant nutrition fortification. HTS 2936.23.00.00 as unmixed vitamin, excluded from Chapter 19/21 when supplied bulk for later mixture.
High-Purity Riboflavin for Fermentation Media
Analytical-grade Riboflavin for microbial growth media in biotech production. Still HTS 2936.23.00.00 as synthetic vitamin used primarily as such, industrial end-use doesn't change chemical classification.