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Home > Products >  7-Dehydrocholesterol---high quality animals extract CAS NO.434-16-2

7-Dehydrocholesterol---high quality animals extract CAS NO.434-16-2 CAS NO.434-16-2

  • Min.Order: 10 Gram
  • Payment Terms: T/T,Other
  • Product Details

Keywords

  • 7-Dehydrocholesterol
  • 7-Dehydrocholesterol
  • 434-16-2

Quick Details

  • ProName: 7-Dehydrocholesterol---high quality an...
  • CasNo: 434-16-2
  • Molecular Formula: C27H44O
  • Appearance: White powder
  • Application: 1. Important intermediate in the synth...
  • DeliveryTime: Wihtin 5-7 Days
  • PackAge: A variety of packing ways for your cho...
  • Port: Wuhan / Shanghai / Guangzhou ...
  • ProductionCapacity: 500 Kilogram/Month
  • Purity: 99%
  • Storage: dry and cool in stable temperature
  • Transportation: by air by shipping by express
  • LimitNum: 10 Gram

Superiority

Hubei Jusheng Technology Co., Ltd.,  is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates in China. The yearly production capacity is 50000MT, 80% for export.We have a professinal export team. Both by Air and by Sea,we ensure that we meet the customer expectations with promptness. Our company facing global High-tech pharmaceutical raw materials, high complex new type intermediates, fine chemicals custom synthesis, scale-up production and Rare chemicals trade. Corey have well-equipped machine, strong technical force and considerate marketing team service. We also have rich experience advantage in basic research, small scale process development, scale-up, industrial technology development & production and cost control.   
Why choose us   
1,We produce and sell unique chemicals around the world.   
2,Our success rate is about 95%. This means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%.   
3,Our staff consists of highly qualified individuals with Bsc, Msc and Ph.D degrees in chemistry, as well as excellent carbohydrates,nucleosides, small molecules and rare chemicals.   
4,Imaginechem's chemists are skilled at performing complex, multi-step syntheses and solving difficult chemistry-related problems. Because of our better, concentracted size and low overheads, we are able to offer prompt quotations, very competitive prices, high quality products and fast delivery.   
5,All chemicals are typically >97% for building blocks, The structure and purity is confirmed by NMR and LC-MS. Intermediates and final products are analyzed by GC, HPLC, IR, NMR, MS, elemental analysis, atom-absorpting analysis and crystallographical methods.   
6,Stable quality, high quality satisfy customer's high grade sourcing request. Competitive price . Correct delivery time promise. Continuous improvement make sure the long-term cooperation. Honest service for your whole sourcing process.   
Because of our better, we are able to offer prompt quotations, very competitive prices, high quality products and fast delivery. We can provide recipes and professional suggestions to promote yourselves. Tracking number and packing photoes can be given quickly after your goods sent. High quality, best price, first-class service, high successful delivery rate, we have stock, so we can delivery quickly at the very day when payment is arrived. 
 

Details

 

Product Name: 7-Dehydrocholesterol
Synonyms: (3)-7-Dehydrochlesterol;(3beta)-Cholesta-5,7-dien-3-ol;(3-beta)-cholesta-7-dien-3-ol;(3beta)-cholesta-7-dien-3-ol;3-Hydroxycholesta-5,7-diene;5,7-Cholestandien-3.beta.-ol;5,7-Cholestandien-3beta-ol;7,8-Didehydrocholesterol
Product Details:
Place of Origin: China
Certification: ISO9001
Brand:YuanCheng
Payment & Shipping Terms:

Minimum Order Quantity:1kg
Supply Ability:500kg/week
Delivery Time:within 24 hours after payment
Payment Terms:, MoneyGram, T/T
Appeatance:white to off-white fine crystalline powder

Product Description:
CAS: 434-16-2
MF: C27H44O
MW: 384.64
EINECS: 207-100-5
Package:25kg/bucket
Purity:95%

7-Dehydrocholesterol is a zoosterol that functions in the serum as a cholesterol precursor, and is converted to vitamin D3 in the skin, therefore functioning as provitamin-D3. The presence of this compound in human skin enables humans to manufacture vitamin D3 from ultra-violet rays in the sun light, via an intermediate isomer pre-vitamin D3. It is also found in the milk of several mammalian species. In insects it is a precursor for the hormone ecdysone, required for reaching adulthood.It was discovered by Nobel-laureate organic chemist Adolf Windaus

Synthesis of pre-vitamin D3 in the skin involves UVB radiation which effectively penetrates only the epidermal layers of skin. 7-Dehydrocholesterol absorbs UV light most effectively at wavelengths between 290-320nm and thus the production of vitamin D3 will only occur at those wavelengths. The two most important factors that govern the generation of pre-vitamin D3 are the quantity (intensity) and quality (appropriate wavelength) of the UVB irradiation reaching the 7-dehydrocholesterol deep in the stratum basale and stratum spinosum.[4] Another important consideration is the quantity of 7-dehydrocholesterol present in the skin. Under normal circumstances, ample quantities of 7-dehydrocholesterol (about 25-50 mg/cm2 of skin) are available in the stratum spinosum and stratum basale of human skin to meet the body's vitamin D requirements.

Usage:
1. Important intermediate in the synthesis of vitamin D3
2. Skin sunscreen additive in cosmetics
3. Other laboratory reagents

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