Xi'an Julong Bio-Tech Co., Ltd.
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Country: 
China (Mainland)
Business Type:Trading Company
Tel: +008618049624045
Tel: +008615877690239
Tel: +0086-18792996027
Tel: +008618049624045
Tel: +008618291367393
Tel: +8618629260427
Tel: +008617802922472
Tel: +008618729964529
Mobile: 18049624045
Tel: +008618049624045
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URL: http://LookChem.com
Province/state: Shaan xi
City: xi'an
Street: Xi'an
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Ms.Amber Ms.Florence Ms.Lisa Ms.EllenCAS NO.50-14-6
Powder(10-50)GramPowder(51-500)GramPowder(500-1000)Gram
1. Who are we
We are based in Shaanxi, China, start from 2018,sell to North America(00.00%),
Western Europe(00.00%),South America(00.00%),Southeast Asia(00.00%),
Eastern Europe(00.00%). There are total about 11-50 people in our office.
2. How can we guarantee quality
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us
Plant Extracts,Cosmetics Raw Materials,Vitamin Raw Materials,Pharmaceutical Raw Materials and Intermediates.
4. Why should you buy from us not from other suppliers
Our company mainly devoted in producing pharmacetical intermediates , Vitamins , and health supplement ,
the quality and technical content can reach the advance level in China .
Our products are sold well in China as well as in more than 20 countries.
5. What services can we provide
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian.
6.We promise our customer following items
Support product customization:
We can provide OEM&ODM , Because we have a professional design team.
Reasonable price:
We provide high quality products with competitive price in china,
Low MOQ:
No worry about the low moq, our moq is 1 gram or lower.
Good and efficient service,Fast Delivery
Fast respond save client's time, we promise to reply inquiry in 24 hours including holidays and send quotation sheet and other documents in 48 hours.
Super-good quality
We have strict quality control system .Good reputation in Market , And have the Third party test report is available.
What's CAS 50-14-6 Vitamin D2 Powder
| Product Name: | Vitamin D2 |
| CAS: | 50-14-6 |
| EINECS: | 200-014-9 |
| Content: | 99% |
| Shelf Life: | 2 Years |
Vitamin D2 is best known for its role in the development and maintenance of healthy teeth, bones, and cartilage in children
and adults. Vitamin D helps the body keep bones and teeth strong by increasing absorption of calcium and phosphorus
from the small intestine.
There are two forms of Vitamin D: ergocalciferol, which is found in such foods as fortified milk, herring, mackerel, tuna,
salmon, sardines, eggs, fortified cereals and baked goods; and cholecalciferol, which is manufactured when the body is
exposed to sun.
Application & Function
Vitamin D2 in promoting intestinal brush border calcium absorption and renal tubular reabsorption of phosphorus,
increasing the concentration of serum calcium, serum phosphorus, in collaboration with parathyroid hormone (PTH),
calcitonin (CT), old bones to release calcium phosphate, normal maintenance and regulation of plasma calcium and
phosphorus concentration. Vitamin D2 is promoting the formation of new bone calcium deposition in parts, the citrate
salt deposition in bone, bone calcification and bone cell function and bone-like tissue to mature.
1. Applied in food field, it is a kind of ideal green food to reduce weight;
2. Applied in health product field, celery can stable mood and eliminate irritable;
3. Applied in pharmaceutical field, to treat rheumatism and gout has good effect.
| Items | Specification | Results |
| Appearance | White powder of crystalline powder | White crystalline powder |
| Specific optical rotation | +36°~+43° | +41.0° |
| IDENTIFICATION | ||
| HPLC | The retention time of the major peak of the sample solution corresponds to that of the system suitability solution,as obtained in the test for Enatiomeric. | Complies |
| UV | The UV absorption spectra of the test solution exhibit maximum absorption at 266nm,273nm and 282nm. | Complies |
| IR | IR spectrum of sample conforms to that of reference standard. | Complies |
| Reaction of chlorides | A solution of it responds to the tests for Chloride. | Complies |
| TESTS | ||
| Appearance of solution | Clear;not more intensely coloured than Y2 or GY2 | Complies |
| Related substances | ||
| Impurity A | NMT 0.2% | 0.01% |
| Impurity B | NMT 0.2% | Not found |
| Impurity C+D | NMT 0.8% | 0.02% |
| Impurity F | NMT 0.2% | Not found |
| 0.03%(RRT:0.95) | ||
| Any other detectable impurity | NMT 0.1% | 0.03%(RRT:1.2) |
| 0.03%(RRT:1.3) | ||
| Total impurities | NMT 1.5% | 0.15% |
| Impurity E | NMT 0.2% | Not found |
| Enantiomeric | NMT 1.0% | 0.02% |
| Residual solvents | ||
| Methanol | NMT 0.3% | Not found |
| Ethanol | NMT 0.5% | 0.0636% |
| n-Butanol | NMT 0.5% | Not found |
| Tetrahydrofuran | NMT 0.072% | Not found |
| Toluene | NMT 0.089% | Not found |
| Ethyl acetate | NMT 0.5% | Not found |
| Ether | NMT 0.5% | 0.0007% |
| Chloroben | NMT 0.036% | Not found |
| N-methyl formamide | NMT 0.088% | Not found |
| Loss on drying | NMT 0.5% | 0.08% |
| Residue on ignition | NMT 0.1% | 0.03% |
| Heavy metals | NMT 0.001% | Less than 0.001% |
| Assay(on anhydrous basis) | NLT 98.5% of C17H17Cl2N·HCl | 99.6% |
1. All inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
4. OEM/ODM Available.
5. Reasonable & competitive price, fast lead time.
6. Sample is available for your evaluation & Formulation development.
7. Faster delivery:Sample order in stock and 3-7 days for bulk production.
8.We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder
9. After-Sale Service:
1) International Authorized Third-Party Test For The Products You Demand.
2) 30 Days Warranty of quality of goods.
Delivery & Payment Terms
Julong Bio-Tech Co., Ltd. is located in Xi'an City, Shaanxi Province, China. It is a biotechnology enterprise engaged
in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials
and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability
of product quality from all aspects. The company has a complete sales service system, the products are exported to countries
all over the world, and have won a good international reputation with excellent quality and excellent service.
The company has been adhering to the basic principles of "integrity, quality, service, and win-win" to serve customers,
constantly strict requirements, set goals, and implement win-win development.
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