I. [Product Description]
This product is a PEG derivative containing 2-pyridyl disulfide groups and N-hydroxysuccinimide esters. It has the dual functions of organic intermediates and pharmaceutical intermediates and is suitable for the directional coupling and modification of biological macromolecules. Its unique reversible cleavage property of disulfide bonds and the steric hindrance effect of the PEG chain enable it to exhibit high-efficiency selectivity in catalytic cross-linking reactions while providing excellent solubility and stability.

II. [Product Details]
    【Appearance】Based on different molecular weights, it appears as a white/off-white solid or a viscous liquid.
    【Stability】Store under refrigeration 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 at a low temperature below 4°C in a sealed and dry environment.
▪ Note: ▶ To ensure product stability, please open the package for use only after constant-temperature drying!

III. [Application Fields]
    1. Site-specific coupling of proteins or peptides with carrier molecules (based on the specific reaction between N-hydroxysuccinimide esters and amino groups).
    2. Surface modification of functionalized nanomaterials (using the PEG chain to improve material hydrophilicity and biocompatibility).
    3. Reversible cross-linking catalyst in polymer synthesis (realizing dynamic chemical bond control through disulfide bonds).
    4. Construction of biosensor probes (2-pyridyl disulfide groups for controlled release).
    5. Linking unit in the construction of targeted carriers (combining long PEG chains to optimize the in vivo circulation performance of carriers).

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 independent R & D-production-sales, providing professional research reagents for scientific experiments in universities. 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 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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