Cbz-N-Amido-PEG-CH2COOH is a compound commonly used in pharmaceutical research and development. It belongs to the family of polyethylene glycol (PEG) derivatives that are often utilized to enhance the solubility, bioavailability, and pharmacokinetic properties of drugs. Specifically, Cbz-N-Amido-PEG-CH2COOH contains a PEG backbone with a carbobenzoxy (Cbz) group at one end and a carboxylic acid (COOH) group at the other end, as well as an amide (N-Amido) linkage in between. This structure allows for the formation of stable conjugates with drugs, peptides, or proteins through covalent attachment, thereby improving their stability, solubility, and circulation time in vivo. Due to its versatility and potential benefits, Cbz-N-Amido-PEG-CH2COOH has been extensively studied and applied in various pharmaceutical fields, such as drug delivery, imaging, and diagnostics.