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With access to the state-of-the-art equipment, advanced synthetic and analytical technologies, ChinaPeptides(QYAOBIO) provides a full spectrum of high-quality peptide services ranging from Custom Peptide Synthesis to high-throughput Peptide Library service.

Focusing on peptide synthesis for many years, ChinaPeptides(QYAOBIO) has accumulated a number of patented technologies, which can synthesize customize peptides of different lengths, different amino acid sequences and different purity levels. The quality of peptides is ensured, and COA report including HPLC and MS Analysis Report is sent together with each peptide.Tens of thousands of peptides are in store for different applications.
At present, ChinaPeptides(QYAOBIO) has provided customized peptide services for more than 30000 customers, including the research institutions and some biological companies all over the world,covering more than 50 countries and regions,and has been widely praised.


  • HPLC and MS Analysis reports
  • Dissolution Test Service new
  • Endotoxin testing service new
  • Free desalting service new
Note: Added optional dissolution test service and endotoxin test service, according to different experimental requirements for customers to choose.
Q
What is a polypeptide?
Peptides are small molecules of high nutrients that can be completely absorbed by human cells. They have advanced physiological functions of repairing cells, nourishing cells and activating cells, which can comprehensively increase human immunity and improve physical fitness.
Q
What is the basic principle of peptide synthesis?
Solid-phase synthesis is a major breakthrough in polypeptide synthesis chemical production. Its main feature is that the intermediate product is not doesn't need to be purified, and the synthesis process can be continuous, thus laying a foundation for the automation of peptide synthesis. At present, full-automatic polypeptide synthesis is basically solid phase synthesis.
Q
How many amino acids of peptides are appropriate for immunization?
Peptides used for immunization are usually about 10-15 amino acids long.Certainly, longer peptide, better immune effect,but the cost of synthesis will increase. The effect of MAP peptide longer than 15aa is expected to be better. In addition, the immune effect of peptides less than 10aa was poor.
Q
Does the purity of peptide for immunization need to be very high?
Generally speaking, 70-85% purity is sufficient.
Q
What is the form of the peptide?
The polypeptide we provide is in powder form, usually grey and white. The color of the polypeptide powder varies with the composition. It is stored in 2ml centrifuge tube, and can be divided according to customers' requirements.
Q
How are peptides stored?
The outside temperature has no effect on the validity period and quality of the peptide during short-term transportation.For long term storage, peptide should be away from light and kept frozen at -20℃ for maximum stability. For short term storage, peptide could be stored at 4℃.
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