I. [Product Description]
OPSS-PEG-His is a multifunctional organic intermediate that combines the dynamic reversible cross-linking properties of the ortho-pyridyl disulfide group (OPSS), the hydrophilicity of polyethylene glycol (PEG), and the metal coordination ability of histidine (His). It is widely used in bioconjugation, surface modification of nanomaterials, and the construction of catalytic systems. Its modular design supports efficient coupling reactions, making it an ideal pharmaceutical intermediate and catalyst carrier for the development of highly stable composite materials.

II. [Product Details]
    【Appearance】 Depending on the molecular weight, it appears as a white/off-white solid or a viscous liquid.
    【Stability】 Store it in a refrigerator and avoid repeated freezing and thawing.
    【Solvent】 Conventional 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 sealed container at a low temperature below 4°C in a dry place.
▪ Note: ▶ To ensure product stability, please open the package for use after constant temperature drying!

III. [Application Fields]
    1. Directional conjugation and functional modification of biological macromolecules (such as proteins and antibodies) with nanoparticles.
    2. Surface coating and stability enhancement of metal nanocatalysts.
    3. Construction of intelligent responsive hydrogels (based on dynamic disulfide bonds and metal coordination).
    4. Controllable self-assembly of polymer materials and development of drug delivery systems.
    5. Immobilization of recognition elements and signal amplification in 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. is based on an integrated business model of independent R & D-production-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 have other product needs, please contact us:
Contact Information:
Landline: 023-62795528
Customer Service Hotline: 19112925095 丨 QQ: 3012135199
                                           18896157519 丨 QQ: 3354316092

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