I. [Product Description] 
Casein-PEG-OPSS is a functionalized organic intermediate based on the covalent coupling of casein (Casein) and polyethylene glycol (PEG). By introducing the active group of thiopyridine (OPSS), it is endowed with high-efficiency biological coupling ability. This compound exhibits excellent water solubility and directional coupling characteristics in the construction of protein stabilization carriers, the surface modification of nanomaterials, and catalytic reaction systems, and is suitable for high-precision biomolecular assembly and functional material development.

II. [Product Details] 
    【Appearance】 Based on different molecular weights, it appears as a white/off-white solid or a viscous liquid. 
    【Stability】 Store under refrigeration and avoid repeated freezing and thawing. 
    【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 and dry place at a low temperature below 4°C. 
▪ Notes: ▶ To ensure product stability, please note that the package can only be opened for use after constant-temperature drying! 

III. [Application Fields] 
    1. Directional immobilization of targeting molecules in bioconjugation reactions 
    2. Surface functional modification of nanoparticles (such as gold nanoparticles and quantum dots) 
    3. Controllable assembly and stabilization of protein or polypeptide carriers 
    4. Interface modification and signal amplification of biosensor probes 
    5. Development of functional cross-linkers for polymer composites 

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

Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates based on an integrated business model of independent R & D-production-sales, providing professional scientific research reagents for scientific research experiments in universities. 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: 19112925095 丨 QQ: 3012135199
                                           18896157519 丨 QQ: 3354316092 

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