shanxiyuhong(expird)
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Business Type:Trading Company
CAS NO.367-93-1
1, Quality:
Our company is a professional production of intermediates and chemicals for many years, our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us.
And we are the manufactory, so you don’t need to doubt the quality.
2, Payment method: for example T/T, D/A, L/C, Westerm Union,other
3, Service: Best service and after-sales service to all clients.
1)We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment...So we both can make the best of the bad bargain.
2)We will ship the goods that you order from us by HKEMS, DHL, UPS, TNT and EUB.We will decided to choose which courier depend on different countries.To find the best way to delivery the goods for you.
3)As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact us immediately.
4, Delivery:
Sample Order : As usual you can get the goods within 4-7days. We can send it via HKems, HK Air Post, DHL or other methods.
We have a professional and stable logistics, and we can deliver the package smoothly around 3 to 5 days.
Bulk Order: Shipped via sea or air, it's according to your requirement, delivery time is 7-15days after payment.
If you have any other questions to consult me,please not hesitate to contact me any times.
IPTG Isopropyl-beta-D-thiogalactoside CAS:367-93-1
Character description
White crystalline powder; easy to dissolve in water, methanol, ethanol, soluble in acetone, chloroform, insoluble in ether. It is the inducer of beta galactosidase and beta galactotransaminase, which is not hydrolyzed by beta galactoside and is the substrate of thiosulfate galactoylase.
Melting point: 114~121 degrees centigrade
Molecular formula: C9H18O5S
Use description
The commonly used molecular biology reagents, commonly used in blue white screening and IPTG induced protein expression in bacteria.
The main function of lactose analogue IPTG is to release the repressor from Lac or Tac promoter and induce the production of recombinant protein bFGF. The effect of IPTG on E.coliJM103 growth was determined by shake flask test.
IPTG had no significant effect on the maximum growth rate and the final cell density of the plasmid free E.coliJM103, but for the plasmid containing E.coliJM
The maximum growth rate of 103-pUC18-bFGF and the final cell density regardless of whether to join the IPTG, the results are less than the plasmid containing JM103 is low, indicating whether the exogenous gene expressing cells containing exogenous gene or not, can affect the host cell growth, but in the expression of exogenous gene, its effect on the growth of the host cell is more obviously.
The activity of tryptophanase was induced by IPTG. The concentration of IPTG had great influence on the activity of tryptophanase, and low temperature was beneficial to the expression of activity. However, too low temperature would affect the growth rate of bacteria and prolong the fermentation period.
Packaging specification
1G, 5G, 25G, 100G, 1KG, 25KG
Storage conditions
Cold storage at 2-8 centigrade.
Test report:
1.PH value: 5.86
2. clarification degree: colorless clarification
3. absorbance: A330nm:0.073; A400nm:0.038
4. rotation: -29.6 degrees
5. water: 0.8%
6. melting point: 118.7-123.7
7. Purity: 99.5%
Use: IPTG is beta - use. Nowadays, IPTG has been used in more and more fields. It plays a huge role in the fields of production, pharmaceuticals, biotechnology and so on, bringing greater benefits to enterprises, improving product quality and shortening product response time.