I. [Product Description]
COOH-PEG-Tosyl is a multifunctional organic intermediate that combines the high reactivity of carboxyl groups with the excellent leaving ability of tosylate groups. Its PEG segment endows the molecule with good water solubility and biocompatibility. It is widely used in the fields of polymer modification, bioconjugation, and functional material synthesis, and is particularly suitable for catalytic reaction systems that require precise control of coupling sites.

II. [Product Details]
【Appearance】 Depending on the molecular weight, it appears as a white/off-white solid or a viscous liquid.
【Stability】 Store refrigerated and avoid repeated freeze-thaw cycles.
【Solvents】 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, dry place 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 Areas]
1. As a bifunctional cross-linker in organic synthesis to construct dendritic polymers.
2. Directional functional group modification on the surface of polymer materials.
3. As an end-functionalizing reagent in the preparation of nanomaterials.
4. As a linking arm in the directional conjugation reaction of biomacromolecules.
5. Design of cleavable spacer arms in solid-phase synthesis.

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

Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates under an integrated business model of independent R & D, production, and 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 offer professional product customization services.

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