riboflavin-5-phosphateMolecular formula: C17H20N4O6Molecular weight: 376.37DESCRIPTION:Yellow to orange yellow crystal powder, a variety of crystal, smelly, taste bitter. About 280 degrees melting and decomposition. Is - 115 ° ~ - 140 °. Satu
Detailed introduction to riboflavin-5-phosphate:
riboflavin-5-phosphate
Molecular formula: C17H20N4O6
Molecular weight: 376.37
DESCRIPTION:
Yellow to orange yellow crystal powder, a variety of crystal, smelly, taste bitter. About 280 degrees melting and decomposition. Is - 115 ° ~ - 140 °. Saturated solution is neutral, pale yellow, fluorescence. Dry from scattering effects, but in solution can lead to the light. Neuter or under very stable, alkaline acid rapidly decomposition, light decomposition, light flavin faster. In a stable, antioxidant reductant lose yellow and fluorescence. Extremely insoluble in water, soluble in 3000-1g 20000ml water, because of crystal. When used with solution preparation niacinamide, urea, saccharin sodium etc. Help solvent, The soluble in ethanol than water. Insoluble in ether and chloroform, easily soluble in dilute alkali but. In sodium hydroxide solution for levorotatory, hydrochloric acid solution for dextral in.
Natural products widely exists in milk, eggs, liver, kidney and heart, yeast and sprout beans.
QUALITY STANDARD
GB 14752-93
Content | 98.0%102.0% |
Specific rotation | 120°140° |
Photosensitive flavin | ≤0.025% |
Loss of drying(105,4h) | ≤1.5% |
Ignition residue(GT-5) | ≤0.3% |
Heavy metal(based on Pb) | ≤0.001% |
As | ≤0.0003% |
FAO/WHO,1999
Content(based on drying) | 98.0%101.0% |
Photosensitive flavin | ≤0.025% |
Loss of drying(105,4h) | ≤2.0% |
Sulphate ash | ≤0.1% |
Heavy metal(based on Pb) | ≤1mg/kg |
Primary aromatic amine | ≤100mg/kg |