Riboflavin
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Product |
Riboflavin (Vitamin B2) |
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|
CAS No. |
83-88-5 |
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Molecular Formula |
C17H20N4O6 |
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|
Molecular Weight |
376.37 |
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Molecular Structure |
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|
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Quality Standard |
USP30/BP2007 |
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Packing |
25kgs drums with PE liner bags |
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Shelf Life |
2 years |
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Storage |
It must be stored in dry, cool and ventilation place. |
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Specification |
USP30 |
BP2007 |
|
Appearance |
A yellow or orange yellow crystalline powder |
A yellow or orange yellow crystalline powder |
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Identification |
Conform |
Conform |
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Specific rotation, ° |
-115 ~ -135 |
-115 ~ -135 |
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Assay (on dried basis, %) |
98.0 ~ 102.0 |
97.0 ~ 103.0 |
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Loss on drying (%) |
≤1.5 |
≤1.5 |
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Residue on ignition (%) |
≤0.3 |
≤0.1 |
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Organic volatile impurities |
Meets the requirements |
/ |
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Acidity or alkalinity(PH) |
/ |
Meets the requirements |
|
Lumiflavine |
440 nm Absorbance≤0.025 |
≤0.025 |
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Absorbance |
/ |
A373nm/A267nm=0.31~ 0.33 A444nm/A267nm=0.36~ 0.39 |
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