I. [Product Description]
SAS-PEG-Poly-Arginines (Alkyl Sulfonate-Polyethylene Glycol-Polyarginine) is a multifunctional organic intermediate that combines the characteristics of a surfactant with the function of a biocompatible carrier. The PEG segment in its structure imparts excellent water solubility and stability, while the polyarginine unit provides cation-binding ability. It can be widely used in catalytic reaction systems and the field of complex molecular assembly, especially in the synthesis of pharmaceutical intermediates that require precise regulation of interfacial properties.

   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 freeze-thaw cycles.
- **Solvents**: 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, dry container 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 Fields]
1. Construction of amphiphilic block copolymers in polymer material synthesis.
2. Surface charge regulation and functional modification of nanocarrier systems.
3. Cationic anchoring layer for biosensor interface modification.
4. Construction and optimization of phase-transfer systems in catalytic reactions.
5. Template-directed synthesis of complex molecular assemblies.

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

Chongqing Yusi Medical Technology Co., Ltd. operates under an integrated business model of independent R & D, production, and sales, providing professional scientific research reagents for scientific experiments in universities. Compared with similar products on the market, our company's products have obvious price advantages. In addition, we also offer specialized product customization services.

If you need other products, please contact us:

Contact Information:
- Landline: 023-62795528
- Customer Service Hotline: 19923757617 丨 QQ: 3279537175
                                           19112925095 丨 QQ: 3012135199

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