I. [Product Introduction] 
VA-PEG-Valine is a functionalized organic intermediate based on the bridging of valeric acid and valine through polyethylene glycol (PEG). It has excellent molecular modifiability and water solubility regulation ability. This compound can be used as a pharmaceutical intermediate in coupling reaction systems or as a flexible linking carrier in catalytic systems, significantly improving the reaction efficiency and product stability.

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

III. [Application Fields] 
1. Functionalized linking arm for targeted drug delivery systems 
2. Adjustable spacer in biopolymer coupling reactions 
3. Polar modifier for surface modification of nanomaterials 
4. Hydrophilic-hydrophobic balance modification of polymer materials 
5. Construction of flexible carriers in catalytic reaction systems 

Remarks: 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: 19112925095 丨 QQ: 3012135199
                                           18896157519 丨 QQ: 3354316092 

Recommendation of Similar Products: 
1. mPEG-NHS (Methoxy polyethylene glycol succinimidyl ester) 
2. MAL-PEG-COOH (Maleimide-polyethylene glycol-carboxylic acid) 
3. FA-PEG-SH (Folic acid-polyethylene glycol-mercapto group) 
4. PLGA-PEG-NH2 (Poly(lactic-glycolic acid)-polyethylene glycol-amino group) 
5. DSPE-PEG2000 (Distearoyl phosphatidylethanolamine-polyethylene glycol 2000) 
6. Chitosan-PEG-COOH (Chitosan-polyethylene glycol-carboxylic acid) 
7. HA-PEG-NHS (Hyaluronic acid-polyethylene glycol-succinimidyl ester) 
8. PEG-PLGA-PEG triblock copolymer 
9. Cyclodextrin-PEG-MAL (Cyclodextrin-polyethylene glycol-maleimide) 
10. PEGylated Gold Nanoparticles (Polyethylene glycol-modified gold nanoparticles) 
11. PEG-PCL (Polyethylene glycol-polycaprolactone) amphiphilic copolymer 
12. PEG-Grafted Silica Nanoparticles (Polyethylene glycol-grafted silica nanoparticles) 
13. PEG-Transferrin (Polyethylene glycol-transferrin conjugate) 
14. PEG-PEI (Polyethylene glycol-polyethyleneimine) gene delivery vector 
15. PEG-DSPE (Polyethylene glycol-distearoyl phosphatidylethanolamine) liposome material