I. [Product Description] 
NHS-PEG-Tosyl is a multifunctional organic intermediate that combines the efficient coupling ability of N-hydroxysuccinimide ester (NHS) with the selective reaction characteristics of tosyl group (Tosyl). The PEG chain in its molecule can significantly improve water solubility and biocompatibility, and it is widely used in the development of pharmaceutical intermediates such as protein modification, polymer material synthesis, and catalyst support preparation.

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 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 it 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. Bifunctional cross-linking agent in biomolecular conjugation reactions. 
2. Surface functionalization modification of nanoparticles. 
3. Activated intermediate for graft modification of polymer materials. 
4. Oriented coupling of biosensor probes. 
5. Water solubility enhancer in the construction of drug delivery systems.

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.

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