I. [Product Description] 
Mal-PEG-PA is a multifunctional organic intermediate. Through the efficient click chemical reactivity of maleimide groups, the biocompatibility of PEG chains, and the carboxylic acid active sites of propionic acid, it is widely used in bioconjugation, polymer synthesis, and the construction of catalytic systems. This compound can be used as a pharmaceutical intermediate or a catalyst carrier, with excellent solubility and structural designability.

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 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 sealed and dry at a low temperature below 4°C. 
▪ Note: ▶ To ensure product stability, please open the package for use only after constant-temperature drying! 

III. [Application Areas] 
    1. Site-specific conjugation and labeling of proteins/antibodies with fluorescent probes. 
    2. Surface functionalization modification of nanoparticles (such as gold nanoparticles and liposomes). 
    3. Introduction of active reaction sites into polymer materials. 
    4. Immobilization of signal molecules in biosensors. 
    5. Synthesis of amphiphilic block copolymers. 

Remarks: 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. is based on the integrated operation model of independent R & D-production-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: 19112925095 丨 QQ: 3012135199
                                           18896157519 丨 QQ: 3354316092 

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