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Vitamin B2

CAS #83-88-5

Riboflavin, also known as vitamin B2, is a vitamin found in food and used as a dietary supplement.
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Introduction

Riboflavin, also known as vitamin B2, is a vitamin found in food and used as a dietary supplement. As a supplement it is used to prevent and treat riboflavin deficiency and prevent migraines. It may be given by mouth or injection.

Test Specifications USP39 Results Specifications BP2008/EP5 Results
Appearance A yellow or orange yellow
crystalline powder
yellow crystalline powder A yellow or orange yellow
crystalline powder
yellow crystalline powder
Solubility Very slightly soluble in water,
practically insoluble in ethanol (96 percent) .
Conform
Identification Conform Conform Conform Conform
Absorbance A373nm/ A267nm=O. 31 0.33
A44nm/A267nm=O. 36
 0.39
0.32
0.38
Specific rotation  -115 ~-135 -121  -115 ~-135 -132
Loss on drying, ≤1.5 0.24 ≤1.0 0.23
Residue on ignition ≤0.3 0.1 ≤1.0 0.1
Lumiflavin 440nm Absorbance≤0.025 0.006 ≤0.025 0.025
Assay 98.0-102.0 98.3 97.0-103.0 99

Functions and Applications

1. Stimulate growth and cell regeneration;    
2. The skin, nails, hair, normal growth;    
3. To help eliminate the mouth, lips, tongue inflammation;    
4. To enhance visual acuity and reduce eye fatigue;    
5. The interaction with other substances to help the carbohydrates, fats, protein metabolism

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