Amino-PEG9-CH2COOH is a chemical product with a unique structure, integrating professionalism and academic nature. This product has a clear molecular structure, with its core composed of a structure where polyethylene glycol (PEG) connects amino groups and carboxymethyl groups. During the production process, through precise organic synthesis techniques, the accurate combination of each molecule is ensured. Amino-PEG9-CH2COOH is often used in biochemical research and the synthesis of advanced materials. In the field of biochemistry, it is widely used as a linker or modifier in the modification of biomolecules such as proteins and nucleic acids. In the field of materials science, it is used to synthesize polymer materials with specific functions. This product, with its precise structure, reliable synthesis process and wide range of application scenarios, provides strong support for scientific research and industrial production.