I. [Product Description]
Mal-PEG-Br (Maleimide-Polyethylene Glycol-Bromide) is a multifunctional organic intermediate, which combines the click chemical reactivity of maleimide groups with the high-efficiency alkylation ability of bromides. Its core value lies in the hydrophilicity and biocompatibility of the PEG chain, which enables its wide application in areas such as bioconjugation, nanomaterial modification, and catalyst support construction, providing a highly flexible molecular platform for the synthesis of pharmaceutical intermediates and functional materials.

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.
    【Solvents】 Common 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 environment at a low temperature below 4°C.
▪ Precautions: ▶ To ensure product stability, please open the package for use only after constant temperature drying!

III. [Application Areas]
    1. Site-specific coupling of biological macromolecules (specific reaction between maleimide and thiol groups).
    2. Surface functionalization of nanoparticles (bromide groups for covalent modification).
    3. Synthesis of amphiphilic block copolymers (PEG segments to adjust the hydrophilic-lipophilic balance).
    4. Immobilization of metal catalysts (coordination or covalent loading through bromides).
    5. Cross-linking agent for polymer materials (PEG enhances material flexibility and water solubility).

Note: 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 R & D-production-sales business model, providing professional scientific research reagents for university scientific research experiments. Compared with similar products in 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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