I. [Product Description]
Tosyl-PEG-SPDP is a multifunctional organic intermediate that combines the high reactivity of the tosyl group with the biocompatibility of the PEG chain. It is widely used in the synthesis of pharmaceutical intermediates and the design of catalysts. Its 3-(2-pyridyldithio)propionic acid succinimidyl ester group enables a controllable thiol-directed coupling reaction, providing an efficient solution for the precise construction of bioconjugate systems.

II. [Product Details]
【Appearance】 Depending on the molecular weight, it appears as a white/off-white solid or a viscous liquid.
【Stability】 Store under refrigeration and avoid repeated freeze-thaw cycles.
【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 in a sealed, dry container at a low temperature below 4°C.
▪ Precautions: ▶ To ensure product stability, please open the package for use only after it has been kept at a constant temperature and dried!

III. [Application Areas]
1. Site-specific coupling and labeling of proteins/antibodies with fluorescent probes.
2. Functional ligand modification of targeted nanocarriers.
3. Controllable functionalization of polymer material surfaces.
4. Construction of reversible cross-linked hydrogels.
5. Molecular self-assembly at the interface of biosensors.

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

Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates under an integrated business model of 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 provide professional product customization services.

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

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