I. [Product Description]
COOH-PEG-PEI (Carboxy-Polyethylene Glycol-Polyethyleneimine) is a multifunctional block copolymer that combines the chemical activity of carboxyl groups, the biocompatibility of PEG, and the high cationic properties of PEI. It can be used as an organic intermediate or a polymer catalyst carrier and is widely applied in the fields of bioconjugation, nanomaterial synthesis, and functional surface modification. Its modular structure supports precise control of molecular weight and functional group density to meet complex synthesis requirements.

II. [Product Details]
    【Appearance】 Depending on the molecular weight, it appears as a white/off-white solid or a viscous liquid.
    【Stability】 Store in a refrigerator and avoid repeated freezing and thawing.
    【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 sealed and dry 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 Fields]
    1. Surface functional modification of nanomedicine delivery systems.
    2. Amphiphilic structural units in polymer composites.
    3. Charge regulation and stability optimization of gene vector materials.
    4. Oriented immobilization of probe molecules on biosensor interfaces.
    5. Stable loading of metal nanoparticles in catalytic reactions.

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. operates based on an integrated 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.

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Contact Information:
Landline: 023-62795528
Customer Service Hotline: 18896157519 丨 QQ: 3354316092
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