I. [Product Description]
Tosylate-PEG-CHO is a multifunctional organic intermediate with dual functions of a pharmaceutical intermediate and a catalyst carrier. Its tosylate group provides highly efficient activation sites, the aldehyde group (-CHO) enables directional coupling reactions, and the PEG chain significantly improves water solubility and biocompatibility. It is suitable for the construction of complex molecules and surface functionalization modification.

II. [Product Details]
【Appearance】 Depending on the molecular weight, it exists as a white/off-white solid or a viscous liquid.
【Stability】 Store under refrigeration and avoid repeated freezing and thawing.
【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 at a low temperature below 4°C in a sealed and dry environment.
▪ Precautions: ▶ To ensure product stability, please note that the package should be opened for use only after constant temperature drying!

III. [Application Fields]
1. Surface functionalization modification of nanomaterials (e.g., directional coupling of gold nanoparticles and quantum dots)
2. Cross-linking agent for polymer materials (construction of degradable hydrogels and intelligent responsive materials)
3. Site-specific labeling of proteins/antibodies (through Schiff base reaction between aldehyde group and amino group)
4. Immobilized carrier for catalysts (to improve the efficiency of heterogeneous catalysis)
5. Protecting group and linking arm in organic synthesis (construction of multi-step reaction intermediates)

Note: 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 self-research, production, and 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 offer professional product customization services.

If you have other product needs, please contact us:
Contact Information:
Landline: 023-62795528
Customer Service Hotline: 18896157519 丨 QQ: 3354316092
                                           19112925095 丨 QQ: 3012135199

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