Riboflavin, Vitamin B2

For the treatment of riboflavin deficiency disease, conjunctivitis, nutrition ulcers, systemic nutritional disorders and other diseases

Items                          Standard                                 Results

Description             White crystalline powder     White crystalline powder

Identification              Positive reaction                        Positive reaction

Acidity or solution             2.7-3.3                                  2.9

Clarity of solution             Clarity                                  Complies

color of solution     Y7or GY7 Not more solution           Complies

Heavy metals                 ≤20ppm                                 <20ppm

Nitrate               No brown ring is produced               Complies

Sulphate                     ≤300ppm                                <300ppm

Sulphate ash                 ≤0.1%                                    0.02%

Loss on drying               ≤5.0%                                 3.9%

Absorbance of solution         ≤0.025                         0.024

Organic Volatile impurities     Complies                     Complies

Assay on drying basis       98.5%-101.5%                   99.2%