N-Boc-N-bis(PEG4-Propargyl) is a bifunctional PEG compound containing two terminal alkynes that are combined together at a Boc-protected secondary amine. Terminal alkynes are most commonly used in copper click chemistry with azides to form stable triazoles with the target molecule. The secondary amine may be deprotected under acidic conditions to allow for alkylation at that position, increasing the molecule’s structural complexity. The use of a central amine also allows for hydrogen bonding, further increasing this compound’s water solubility.
Detail
N-Boc-N-bis(PEG4-Propargyl) is a bifunctional PEG compound containing two terminal alkynes that are combined together at a Boc-protected secondary amine. Terminal alkynes are most commonly used in copper click chemistry with azides to form stable triazoles with the target molecule. The secondary amine may be deprotected under acidic conditions to allow for alkylation at that position, increasing the molecule’s structural complexity. The use of a central amine also allows for hydrogen bonding, further increasing this compound’s water solubility.
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023130P1 Buffered Peptone Water
Product Info
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Product Info
Introduction
Usages:
For pre-enrichment of Salmonella spp.
Principle:
Peptone provide carbon and nitrogen sources to meet the needs of bacterial growth; sodium chloride maintains osmotic equilibrium; potassium dihydrogen phosphate and disodium hydrogen phosphate as buffer.
How to use: 1. Suspend 20g of product, adding 1L of distilled or deionized water, heated to boiling stirring until completely dissolved, dispensing into flask, autoclave at 121 ℃ for 15min, set aside. 2.Diluted and treated samples.
Quality control:
Item
The name and number of strain
Growth
Colony Color
1
Salmonella typhi CMCC (B) 50071
good
Cloudy broth
2
Salmonella typhimurium CMCC (B) 50115
good
Cloudy broth
3
Paratyphoid Salmonella CMCC (B) 50093
good
Cloudy broth
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
Specifications: 250g/bottle; 225ml*10bag/box
Reference: 1.GB/T4789.4-2003 People’s Republic of China national standards of food hygiene Examination of Salmonella microorganisms 2.GB/T4789.28-2003 People’s Republic of China national standards of food hygiene microbiological examination Staining, media and reagents 3.SN0170-92 People’s Republic of China Import and Export Commodity Inspection industry standard Salmonella food for export (including Arizona bacteria) test method 4.GB/T4789.4-2008 People’s Republic of China national standards of food hygiene Examination of Salmonella microorganisms 5.GB 4789.4-2010 national standards for food safety standards of food hygiene inspection and microbiological testing of salmonella People’s Republic of China 6.GB 13091-91 People’s Republic of China National Standard Test Method for Salmonella in feed 7.GB 4789.40-2010 national standards for food safety standards of food hygiene inspection microorganism People’s Republic of China E.sakazakii test 8. ISO 6579-2002 Microbiology of food and animal feeding stuffs —– Horizontal method for the detection of Salmonella spp. 9. ISO22964-2006 Milk and milk products —– Detection of Enterobacter sakazakii 10. ISO6785-2001 Milk and milk products —– Detection of Salmonella spp
Extract high quality & quantity total RNA including miRNA
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Total RNA Purification 96-Well Kit (High Throughput and High Throughput Deep Well)
This 96-well kit provides a rapid method for the high-throughput isolation and purification of total RNA in 30 minutes using vacuum manifold, plate centrifuge, or liquid handlers with vacuum capabilities. Total RNA can be isolated from a broad range of sample sources including cultured cells, tissues, blood, serum, plasma, bacteria, yeast, fungi, and viruses.
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