I. [Product Description]
FA-PEG-SS-PEI is a multifunctional organic intermediate. Through the targeted modification of folic acid (FA), the responsive cleavage property of disulfide bond (SS), and the cationic carrier function of polyethyleneimine (PEI), a composite carrier system with intelligent release characteristics is constructed. As an efficient pharmaceutical intermediate, this compound shows unique molecular design advantages in targeted delivery and controlled release systems. Meanwhile, its PEG modification can effectively improve biocompatibility.

II. [Product Details]
【Appearance】 Depending on different molecular weights, it exists as a white/off-white solid or a viscous liquid.
【Stability】 Store it in a refrigerator and avoid repeated freeze-thaw cycles.
【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 it in a sealed and dry place 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. Functional connection module for targeted drug delivery systems (ACS Nano, 2022)
2. Responsive cleavage component in gene vector construction (Biomaterials Science)
3. Surface functional modification of nanoparticles (Journal of Materials Chemistry B)
4. Directional coupling medium in bioconjugation technology (Advanced Healthcare Materials)
5. Functional cross-linking agent for polymer composites (Macromolecular Rapid Communications)

Remarks: 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. is based on an integrated business model of independent R & D-production-sales, and provides professional 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 provide professional product customization services.

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