I. [Product Description]
VA-PEG-Tosylate (CAS 4083-64-1) is a multifunctional organic intermediate, a polyethylene glycol (PEG) derivative formed by the coupling of valeric acid with tosylate groups. It combines excellent hydrophilicity and reactivity. As a pharmaceutical intermediate, it can be used for the modification of complex molecules. Meanwhile, in the catalytic system, it can improve the efficiency of two-phase reactions. It is suitable for polymer functionalization and bioconjugation technology.

II. [Product Details]
【Appearance】Depending on different molecular weights, it appears as a white/whitish 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 cool, dry place at a temperature below 4°C in a sealed container.
▪ Notes: ▶To ensure product stability, please open the package for use only after constant-temperature drying!

III. [Application Fields]
1. Hydrophilic modification and functionalization of polymer material surfaces
2. Directional coupling of functional groups on the surface of nanoparticles
3. Site-specific labeling and stability optimization of proteins/polypeptides
4. Controllable construction of chemical sensor probes
5. As a soluble carrier in organic synthesis to improve reaction efficiency

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. operates under an integrated business model of independent R & D-production-sales, providing professional 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:
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