Vitamin D2 USP USP Food Additive made in china CAS NO.50-14-6
- Min.Order: 10 Kilogram
- Payment Terms: L/C,D/A,D/P,T/T,Other
- Product Details
Keywords
- Vitamin D2
- Vitamin D
- Vitamins
Quick Details
- ProName: Vitamin D2 USP USP Food Additive made ...
- CasNo: 50-14-6
- Molecular Formula: C28H44O
- Appearance: white crystalline powder
- Application: used in medicine
- DeliveryTime: prompt shipment
- PackAge: 25kg/drum or as required
- Port: China main port
- ProductionCapacity: Metric Ton/Day
- Purity: ≥97.0%
- Storage: 2-8°C
- Transportation: by sea by air express
- LimitNum: 10 Kilogram
Superiority
USP standard
Details
Vitamin D2
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 |
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. |
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2、The infrared absorption spectroscopy should be in according with spectrum of comparison |
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 |
Melting range |
115℃~119℃ |
Specific rotation |
+103°~+106° |
Reducing substance |
Light absorption of sample |
Ergosterol |
None |
Solubility |
Freely soluble in alcohol |
Organic volatile impurities |
Benzene ≤ 2ppm |
Content |
97%~103% |
Total Microbacterial count |
≤1000CFU/g |
Total yeast & Mould |
≤100CFU/g |
Escherichia coli presence |
Absent |