I. [Product Description] 
    NHS-PEG-leucine (N-Hydroxysuccinimide ester-Polyethylene glycol-Leucine) is a multifunctional organic intermediate that enables efficient coupling reactions through active ester groups. The PEG segment in its molecule imparts excellent water solubility and biocompatibility, making it suitable for biomolecule modification, polymer material synthesis, and catalytic system construction, and it is of great value in the development of pharmaceutical intermediates.

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

III. [Application Fields] 
    1. As an activated ester intermediate in bioconjugation reactions. 
    2. Surface functionalization modification of nanomaterials. 
    3. Controlled polymerization and cross-linking of polymer materials. 
    4. Directional functionalization modification of protein/enzyme molecules. 
    5. Development of cross-linking agents for in vitro diagnostic reagents.

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

    Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates under an integrated R & D-production-sales business model, 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 offer professional product customization services.

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

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