Riboflavin 99% For Biochemistry
Confirms to BP
Vitamin B2
Product Code. |
02256 |
Grade |
For Biochemistry |
Purity |
99% |
CAS No. |
83-88-5 |
Molecular Formula |
C17H20N4O6 |
Molecular Weight |
376.37 |
H.S.Code |
2936.23100 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Orange yellow powder |
Odour |
Slight odour |
| pH value |
6 |
Melting point/ Freezing point [°C] |
280°C |
Packaging
Specification
| Appearance | A yellow to orange yellow crystalline powder |
| Solubility | Very slightly soluble in water, practically insoluble in ethanol (96 per cent) |
| Assay (spectrophotometric; on dried basis) | 98 - 101% |
| Identification 'A' & 'B' | To pass IP tests |
| pH | 5.5 to 7.2 |
| Specific optical rotation | -115° to -135° |
| Light absorption | - |
| at A373 nm/A267 nm | 0.31 - 0.33 |
| at A444 nm/A267 nm | 0.36 - 0.39 |
| Lumiflavine | To pass IP test |
| Loss on drying (at 105°C) | Max 1.5% |
| Sulphated ash | Max 0.1% |
Safety Information and Hazard Symbols