Vitamin B2 (Riboflavin) | CAS 83-88-5 | Coenzyme Precursor

Product Name: Vitamin B2 (Riboflavin)
CAS No.: 83-88-5
Molecular Formula: C₁₇H₂₀N₄O₆
Structure: Isoalloxazine ring with a penta-2,3-diol chain
Appearance: Orange-yellow crystals
Solubility: Poorly soluble in water (1.9 g/L at 20 °C); stable in acidic environments
Light sensitivity: Degrades under UV radiation

1. Introduction

Riboflavin (Vitamin B2) is a water-soluble precursor of the coenzymes FAD and FMN, essential for redox reactions, energy metabolism, and the metabolism of fats, carbohydrates, and amino acids.

Riboflavin is obtained from food (milk, liver, cereals) and microbiota. Its deficiency leads to skin lesions, eye disorders (cataracts), anemia, and disturbances in energy metabolism.

2. Production

Industrial synthesis – microbiological fermentation by bacteria (Ashbya gossypii), followed by purification and crystallization.

3. Properties

• Appearance: Orange-yellow crystals

• Solubility: Poorly soluble in water (1.9 g/L at 20 °C); stable in acidic environments

• Light sensitivity: Degrades under UV radiation

4. Applications

• Pharmaceuticals: Prevention and treatment of vitamin B2 hypovitaminosis

• Dietetics: Vitamin-mineral complexes

• Food industry: Animal feed additives

5. Conclusion

Riboflavin is a key water-soluble vitamin coenzyme whose deficiency affects numerous redox processes. The stability and bioavailability of preparations depend on the formulation and storage conditions.