I. [Product Description]
    Tosylate-PEG-VS is a multifunctional organic intermediate with both high coupling ability and excellent water solubility. Its tosylate group can serve as a catalytic activation site, the vinyl sulfone group (VS) can specifically connect to thiol compounds, and the PEG chain significantly enhances the biocompatibility of the product. It is widely used in the synthesis of pharmaceutical intermediates and surface modification of materials.

II. [Product Details]
    【Appearance】 Depending on the molecular weight, it appears as a white/off-white solid or a viscous liquid.
    【Stability】 Store under refrigeration and avoid repeated freeze-thaw cycles.
    【Solvent】 Common organic solvents such as chloroform, dichloromethane, and DMSO.
    【Molecular Weight】 (PEG): 2000, 3400, 5000. Other molecular weights can be customized.
    【Storage Conditions】 Store at a low temperature below 4°C in a sealed and dry environment.
    ▪ Precautions: ▶ To ensure product stability, please open the package for use only after constant temperature drying!

III. [Application Fields]
    1. Bioconjugation reactions of proteins/antibodies with fluorescent probes.
    2. Polymer material modification of targeted drug delivery systems.
    3. Surface functionalization modification of nanoparticles (gold nanoparticles/quantum dots).
    4. Construction of the cross-linking layer at the interface of biosensors.
    5. Cross-linking agent for hydrogel networks.

Note: The products sold by our company are only for scientific research and cannot be used in human experiments or human treatment.

    Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates based on an integrated business model of independent R & D, production, and sales, providing professional scientific research reagents for university scientific research experiments. Compared with similar products on the market, our company's products have obvious price advantages. In addition, we also provide professional product customization services.

If you need other products, please contact us:
Contact Information:
Landline: 023-62795528
Customer Service Hotline: 18896157519 丨 QQ: 3354316092
                                           19112925095 丨 QQ: 3012135199

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