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Hefei KS-V Peptide Biological Technology Co., Ltd. Hefei KS-V Peptide Biological Technology Co., Ltd.
Hefei KS-V Peptide Biological Technology Co., Ltd.
Peptide Tools


Relying on the University of Science and Technology of China and Tsinghua University, Hefei KS-V Peptide Biotechnology Co., Ltd. has a number of intentional lading technologies in the field of peptide and protein total synthesis, dealing with the business of peptides wholesale. The project team can provide various types and multi-modified biological reagents using chemical synthesis methods. Products including modified histones, ubiquitin, and ubiquitin probes toxin peptides, APIs (Semaglutide, Plecanati-de, Octreotide, Edotreotide, etc.) and Cosmetic Peptide are on the peptide list of KS-V.

  • Custom Peptide Custom Peptide
    Custom Peptide
    KS-V Peptide is a peptide manufacturing company that focuses on one-stop preclinical service, which specializes in providing customers with customized pre-clinical service solutions.
  • Antigenic Peptide Antigenic Peptide
    Antigenic Peptide
    Antigenic peptideCategory: PeptidesIn order to obtain the best effect of producing antibodies, it is necessary to carefully design the antigen polypeptide, and the design should meet a basic condition...
  • Peptide Probe Peptide Probe
    Category: PeptidesKeshengjing Peptide can provide customized synthesis of APIs, up to the kilogram level, including process development and scale-up.
  • Ubiquitins Ubiquitins
    Ubiquitin and Ubiquitin ProbesCategory: PeptidesUbiquitin, ubiquitin chains and their derivatives are indispensable molecular tools for studying the structure and function of protein ubiquitination. I...
  • Peptide Toxin Peptide Toxin
    Peptide Toxin
    Category: PeptidesMost of the polypeptide toxins come from the venom glands of poisonous animals, such as spiders, snakes, scorpions, etc. There are a wide variety of toxin polypeptides, which are hig...
  • Cosmetic Peptide Cosmetic Peptide
    Cosmetic Peptide
    As an active peptide company, we are proud to announce that small molecule cosmetic peptides are non-toxic, highly active, and easy to absorb according to present research. The cosmetic peptides for sale also have special physiological activities. They can essentially improve a series of skin problems. They are very effective in cosmetics.


  • Centricity customer & service
    01 Centricity customer & service

    We provide the best quality products and services in the industry, and we have professional knowledge and rich experience in the field of peptide development and production.

  • High-quality products
    02 High-quality products

    KS-V Peptide is a leading peptide company in peptide developing and manufacturing. And we are in business of peptide wholesale too.

  • Love and passion
    03 Love and passion

    Our employees are full of love for the biological field and full of enthusiasm for peptide synthesis and peptide manufacturing, which builds the foundation of our success.

  • Sustainability
    04 Sustainability

    We believe that ethically correct behavior and integrity are essential to long-term business success, so we constantly monitor and improve our social, economic and environmental performance.

Buy Peptides from KS-V Peptide — Order Now

Buy Peptides from KS-V Peptide — Order Now

  • Contact our customer service at

  • Send your requirements of catalog peptide products.

  • Receive and check our quotation.

  • Sign the contract and arrange the payment.

  • We will arrange the delivery within 1-3 weeks after receiving the balance.

lf you have any other requirements or questions on our peptide products, contact us!

What is the Net Content (Peptide Content) of Peptide and What is its Significance?

The weight of dry peptide contains not only the peptide but also some non-peptide components such as water, absorbed solvent, ligand ions and salt. The net content of peptide is the weight percentage of peptide in it, this percentage has a wide range of values, may be from 50% to 90%, depending on the purity, sequence and the method of synthesis and purification, do not confuse the net content of peptide with the purity of peptide, they are two completely different concepts. Purity is usually determined by HPLC. The purity is defined as the percentage of peptide samples containing the correct sequence of components, while the net peptide content is the percentage of peptides in the sample relative to non-peptides, and the net peptide content is usually determined by amino acid fraction analysis or UV spectroscopy.  Since the net peptide content can serve as an important standard, it is vital for calculating the peptide concentration in some experiments that are sensitive to it.

How to Store the Synthesized Peptide?

How to Store the Synthesized Peptide?

Due to the difference in porprotions of net peptide content in drugs, peptides generally need to be stored away from light for long term storage and should be stored at -20 degrees, and can be stored at 4 degrees for short term. It can be transported at room temperature for a short time. Peptides are stable at -20°C, especially after being freeze dried and stored in desiccators. Before exposing them to air, freeze dried peptides can be put at room temperature. This will be less affected by humidity, and when freeze-drying is not possible, the best method is to store them in small working sample volumes. For Cys, Met or TrP containing peptides, deoxidation buffer is essential for their solubilization, because such types of peptides can be easily oxidized by air, and the slow flow of nitrogen or argon through the peptide before sealing the bottle will also reduce the oxidation effect. Peptides containing Gln or Asn are also susceptible to degradation, and all these peptides have a limited life span compared to those that do not contain these problematic simple ones. If you want to buy bulk peptides, the folowwing part will be convenient for you to make inquiry.