I. [Product Description]
SPA-PEG-Mal (Succinimidyl Propionate-Polyethylene Glycol-Maleimide) is a bifunctional cross-linking agent that combines the reactivity of succinimidyl ester (NHS) and maleimide groups. It is suitable for bioconjugation, surface modification of materials, and functionalization of nanoparticles. As an efficient organic intermediate/ pharmaceutical intermediate, its PEG segment can adjust hydrophilicity and enhance biocompatibility, and it is widely used in catalytic reaction systems and polymer synthesis fields.

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

III. [Application Fields]
1. Site-specific coupling modification of proteins and peptides
2. Surface functionalization of nano-carriers (such as liposomes and polymer micelles)
3. Oriented immobilization of probe molecules in biosensors
4. Controllable cross-linking and structural regulation of polymer materials
5. Preparation and purification of fluorescent labeling reagents

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

Chongqing Yusi Pharmaceutical Technology Co., Ltd. is based on an integrated business 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 have other product needs, please contact us:
Contact Information:
Landline: 023-62795528
Customer Service Hotline: 19923757617 丨 QQ: 3279537175
                                           19112925095 丨 QQ: 3012135199

Similar Product Recommendations:
1. NHS-PEG-Mal (Molecular Weight: 2000-20000)
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3. Mal-PEG-NHS (Molecular Weight: 1000-10000)
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5. Acrylate-PEG-NHS (Acrylate-PEG-NHS)
6. FITC-PEG-Mal (Fluorescently Labeled PEG Derivative)
7. NH2-PEG-Mal (Amino-PEG-Maleimide)
8. COOH-PEG-Mal (Carboxyl-PEG-Maleimide)
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10. TCO-PEG-Mal (Trans-Cyclooctene-PEG Derivative)
11. Silane-PEG-COOH (Silanized PEG Reagent)
12. PLGA-PEG-Mal (Block Copolymer)
13. Cholesterol-PEG-NHS (Cholesterol-PEG Coupling Agent)
14. mPEG-Mal (Methoxy PEG-Maleimide)
15. Azide-PEG-NHS (Azide-PEG-NHS)