Hangzhou Lingrui Chemical Co.,Ltd.
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China (Mainland)
Business Type:Other
Tel: 86 571-88092529
Mobile: 18958069012
Tel: 86 571-88092529
Fax: 86 571-87334908
URL: http://www.lingruichem.com
Province/state: Zhejiang
City: Hangzhou
Street: 201-B 2# Building Qinglan science park, 321# JinPeng Str. Xihu District Hangzhou City, PR.CHINA
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CAS NO.50-14-6
High purity 50-14-6 immediately delivery Vitamin D2 good supplier
there are currently at least 10 kinds of vitamin d known, but the most important ones are vitamin D2 (ergocalciferol) and vitamin D3 (bile calcification aldehyde). Vitamin D2 is produced by ergosterol in plants irradiated by ultraviolet rays, but the stock in nature is very small. Vitamin D3 is transformed from the 7-dehydrocholesterol contained in the human epidermis and dermis through ultraviolet radiation in sunlight. The safety of vitamin D2 is better than that of vitamin D3.
Vitamin D refers to a group of fat-soluble steroid compounds, which have anti-rickets effects, so it is called anti-rickets vitamins. At present, there are at least ten kinds of sterols with vitamin D activity. The main ones are the ergosterol in vegetable oil or yeast. After sunlight or ultraviolet radiation, it produces vitamin D2, also known as calciferol or ergociferol. Therefore, ergosterol is called provitamin D2; the other is that the human body can convert cholesterol into 7-dehydrocholesterol and store it under the skin. Under sunlight and ultraviolet radiation, the latter can be converted into vitamin D3, also known as cholecalciferol, so 7-dehydrocholesterol is also called vitamin D3. The structures of vitamin D2 and vitamin D3 are very similar. They are both B- ring open-loop derivatives of the precursor sterol. The difference between the two is that there is an extra double bond and a methyl group on the side chain of vitamin D2. Vitamin D2 and vitamin D3 are colorless or white crystals, both odorless, melting points are 115~118 ℃ and 84~85 ℃, insoluble in water, soluble in ethanol, ether, acetone, etc., slightly soluble in vegetable oil. It is unstable in air and sunlight, and is easily inactivated in humid air, but vitamin D3 is more stable than vitamin D2. The physiological effects of the two in the human body are the same; their main function is to maintain the normal metabolism of calcium and phosphorus, and promote the deposition of calcium and phosphorus into bones and tissues, so this product can be used to prevent and treat metabolic diseases such as rickets and osteomalacia Bone disease. Vitamins D2 and D3 have the same effect on mammalian cows and pigs. However, the activity of vitamin D3 on poultry (birds) is ten times stronger than that of vitamin D2.
Established in 2010, located in Hangzhou Qinglan science park, lingruichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals tovarious industries.n our R&D centre. we have a staff of skilled and experienced research chemists. This has enabled us to meet the special reauirements of our customers and it has enabled us to provide quality products at competitive prices.
1. How can we guarantee quality
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.What can you buy from us
Plant Extracts,Cosmetics Raw Materials,Vitamin Raw Materials,Pharmaceutical Raw Materials and Intermediates
3. 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.
Lingrui's credo is committed to your reliable business partner,reliable quality, competitive prices and superior service, lf you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future !