Characteristics: Yellow or orange yellow crystalline powder; almost odorless and taste slightly bitter; being wet-ejection, dissolves in water easily, but slightly in ethanol and hardly dissolves in chloroform or in ether.
Applications : Having the same actions as Vitamin B2, being better than Vitamin B2 is that it is earlier to dissolve in water and to be absorbed and offers a high intracorporeal usage rate. More noted medical effect comes into being while is applied to disorder of some organic functions such as failing liver function and phosphoryl impediments out of intestinal diseases. Also it can be used as preparative for stable, highly-densed and active Vitamin B2 injection, Vitamin B complex agent and eye ointment and acts as additive in food and beverage.
Specification : USP30, BP2005.
|
Item |
Specification |
|
|
USP30 |
BP2005 |
|
|
Description |
Orange yellow crystalline powder |
Orange yellow crystalline powder |
|
Identification |
Positive |
Positive |
|
pH |
5.0 ~ 6.5 |
5.0 ~ 6.5 |
|
Loss on drying |
7.5% Max. |
8.0% Max. |
|
Specific rotation |
+37.0° ~ +42.0° |
+38.0° ~ +43.0° |
|
Lumflavin |
A440nm 0.025 Max. |
BY6 Max. |
|
Free riboflavin and riboflavin diphosphate |
6.0% Max. |
--- |
|
Free phosphate(As PO4) |
1.0% Max. |
--- |
|
Residue on ignition |
25.0% Max. |
--- |
|
Inorganic phosphate |
--- |
1.5% Max. |
|
Melting point |
205 ~ |
|
|
Volatile organic impurities |
Meets the requirements |
--- |
|
Heavy metals |
--- |
10ppm Max. |
|
Assay (on dried basis) |
73.0 ~ 79.0% |
73.0 ~ 79.0% |
Packing Size : 25 kg net fiber drum, other packing size are according to customer’s requirements.
Storage: Stored in a dry and cool place, keep away from strong light and heat.