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CAS No.:50-14-6
MF:C28H44O
Appearance:white Powder
Specifications
1.Labeyond Chemicals--A Respectable supplier from China
2. More than 12 years experience in global trading and chemicals
Product Name:Vitamin D2
Molecular Formula: C28H44O
CAS Number: 50-14-6
Certificate of Analysis
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Product Name |
Vitamin D2 |
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Batch Number |
120601 |
Potency |
40,000,000IU/ g |
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Analysis Date |
20,06,2012 |
Report Date |
25,06, 2012 |
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Analysis Based on |
USP 29/BP2000 |
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Product Manufactured by |
Sichuan Yuxin Pharmaceutical Co., Ltd . |
Product Provided by |
Sichuan Yuxin Pharmaceutical Co., Ltd . |
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Product Quantity |
500kg |
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Manufactured Date |
18,06, 2012 |
Expiry |
17, 06,2014 |
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Items |
Standard |
Analyzed Results |
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Properties |
Should be a white needle-shape crystal or white crystallized powder ; give out no smell , no taste ; be easy to lose activity in air or light . |
White crystallized powder without any smell or taste . |
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Identification |
1. Dissolve about 0.5mg of vitamin D2 into 5ml chloroform, add 0.3ml acetic anhydride and 0.1ml sulfuric acid, shake and mix vigorously. The mixture is initially produced bright red color , and then rapidly changes violet and finally blue to green . |
Positive reaction |
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2. The infrared absorption spectroscopy should be in according with spectrum of comparison |
The infrared absorption spectrum of the sample is in according with the standard |
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Examination |
Dissolve 10mg of vitamin D2 into 2ml of 90% ethanol, add 2ml solution of digitalis saponin and incubate for 18 hours. No precipitation or cloud should be observed. |
Passed |
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Melting Range |
Between 115°C and 119°C |
115.1°C |
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Specific Rotation |
Between +103 and +106 |
+104.6 |
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Reducing Substances |
Light absorption of sample<Light absorption of standard sample |
Complies |
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Ergosterol |
None |
None |
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Solubility |
Freely soluble in alcohol |
Complies |
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Organic Volatile Impurities |
Benzenenot more than2 p p m |
None |
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Content |
Between 97 % and 103 % |
100.05% |
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Total Microbacterial Count |
Not more than 1000CFU/g |
20CFU/g |
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Total Yeast & Mould |
Not more than 100CFU/g |
5CFU/g |
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Escherichia Coli Presence |
Absent |
Absent |
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Store Condition |
below 10°C |
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Conclusion |
The sample is in accordance with USP29/BP2000 |
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