I. [Product Description]
SPDP-PEG-NH₂ 3-(2-Pyridyldithio)propionic acid N-hydroxysuccinimide ester-polyethylene glycol-amino is a multifunctional organic intermediate, possessing both high-efficiency coupling reaction activity and controllable PEG chain length characteristics. Its core value lies in achieving the directional cross-linking of biomolecules through the dynamic reversibility of the pyridine disulfide bond. Meanwhile, the PEG segment endows the product with excellent water solubility and stability, and it is widely used in the synthesis of pharmaceutical intermediates and the design of catalytic reaction systems.

II. [Product Details]
【Appearance】 Depending on different molecular weights, it appears as a white/off-white solid or a viscous liquid.
【Stability】 Store refrigerated 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 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. Specific cross-linking of thiols and amines in biomolecular coupling reactions.
2. Surface functional modification of nanodrug delivery systems.
3. Site-specific labeling and purification of proteins or polypeptides.
4. Functional graft modification of polymer materials.
5. Covalent connection of ligands-carriers in targeted delivery systems.

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

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 scientific research 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 need other products, please contact us:
Contact Information:
Landline: 023-62795528
Customer Service Hotline: 19923757617 丨 QQ: 3279537175
                                           19112925095 丨 QQ: 3012135199

Similar Product Recommendations:
1. NHS-PEG-MAL (Maleimide-PEG-succinimide ester)
2. Biotin-PEG-NHS (Biotin-PEG-active ester)
3. mPEG-SCM (Methoxy PEG-succinimide carbonate)
4. DBCO-PEG-NHS (Diphenylcyclooctyne-PEG-active ester)
5. SH-PEG-SH (Bis-thiol polyethylene glycol)
6. Acrylate-PEG-NHS (Acrylate-PEG-active ester)
7. FITC-PEG-NHS (Fluorescein-PEG-active ester)
8. DSPE-PEG-COOH (Phospholipid-PEG-carboxylic acid)
9. Azide-PEG-Amine (Azide-PEG-amino)
10. Aldehyde-PEG-NHS (Aldehyde-PEG-active ester)
11. Cholesterol-PEG-MAL (Cholesterol-PEG-maleimide)
12. PLGA-PEG-NHS (Poly(lactic-glycolic acid)-PEG-active ester)
13. Silane-PEG-COOH (Silane-PEG-carboxylic acid)
14. TCO-PEG-NHS (Trans-cyclooctene-PEG-active ester)
15. mPEG-TSA (Methoxy PEG-p-toluenesulfonate)