7- Dehydrocholesterol CAS 434-16-2 Vitamin Precursor 99% Purity Provitamin D3 CAS NO.434-16-2

Min.Order Quantity:: 10 Gram

Purity:: 99%

Port:: Wuhan

Payment Terms:: T/T,MoneyGram

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Product Details

Keywords

434-16-2
7- Dehydrocholesterol
Provitamin D3

Quick Details

ProName: 7- Dehydrocholesterol CAS 434-16-2 Vit...
CasNo: 434-16-2
Molecular Formula: C27H44O
Appearance: white to off-white crystalline powder
Application: Pharmaceutical Raw Materials; Pharmace...
DeliveryTime: 2-4 days after confirming your payment...
PackAge: 100g/ bag, 2 kg/ bag, 25kg/ carton or ...
Port: Wuhan
ProductionCapacity: 10 Metric Ton/Month
Purity: 99%
Storage: Store in sealed containers at cool & d...
Transportation: By DHL, TNT, FedEx, HKEMS, UPS, Etc
LimitNum: 10 Gram

Superiority

our adwantage:

1.we have stock so we can delivery quickly at the very day when receive the payment.

2.best price, first class service, high successful delivery rate. a discount would be given when you make a large order.

3.high quality guarenteed, once any problem is found, the package would be reshipped for you

4.shipping by express (fedex,ups,dhl,ems tnt hkems), by air.the most professional forwarder would be recommanded for you.

5. warm after-sale service for you 24/7. any of your question would be solved for the first as soon as possible.adhering to the principle of customer first conviction.we will provide the best and the most sincere services as possible as we can.

Details

7- dehydrocholesterol cas 434-16-2 vitamin precursor 99% purity provitamin d3

quick detail

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
cas:	434-16-2
mf:	c27h44o
mw:	384.64
einecs:	207-100-5
product categories:	pharmaceutical raw materials;intermediates & fine chemicals;pharmaceuticals;steroids

melting point	148-152 °c(lit.)
alpha	-116 º (c=1, chcl3)
storage temp.	−20°c
water solubility	insoluble

description

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 manufacturevitamin d3 from ultraviolet rays in the sun light, via an intermediate isomer pre-vitamin d3. it is also found in the milk of several mammalian species.[1] in insects it is a precursor for the hormone ecdysone, required for reaching adulthood.[2] it was discovered by nobel-laureate organic chemist adolf windaus.

uses

1. synthesis of vitamin d3 important intermediates
2. skin care sunscreen cosmetics additives
3. other laboratory reagents
storage: store in a dry, clean, cool and dark place. should be avoided with toxic, harmful, contaminated items at the same time storage. in compliance with the above conditions, the shelf life of 36 months.

advantages:

hubei xinrunde chemical co., ltd is a renowned pharmaceutical manufacturer. we can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. never stop striving to offer our best service is our philosophy. we have flexible and untraceable payment terms. as a leading manufacture, our products have been exported to germany, norway, poland, finland, spain, uk, france, russia, usa, brazil, mexico, australia, japan, korea, thailand, indonesia, uruguay and many other countries.

1. quality.every batch of steroid powders have tobetested by our qc(quality control) before they are allowed to sell.

2. delivery we have stock, so we can delivery quickly at the very day when receive the payment. within 24 hours after receiving the payment lead time 4 or 7 days.

3. discreet package safelyand professionally disguised package guaranteed. for your safety and to insure delivery all products will be packed in a discreet way to prevent any suspicions, no steroids related name will appear on the parcels. high successful delivery rate.

4. warm after-sale service any of your question would be solved for the first as soon as possible.