Pomalidomide-PEG1-C2-COOH(Cat No.:I028472)is a functionalized pomalidomide-based building block designed for use in PROTAC and targeted protein degradation research. It features a pomalidomide moiety that binds cereblon (CRBN), a substrate receptor of the E3 ubiquitin ligase complex, promoting ubiquitination of the target protein. The PEG1-C2 linker offers enhanced solubility and flexibility, while the terminal carboxylic acid (COOH) group enables efficient conjugation to amine-containing ligands or scaffolds. Pomalidomide-PEG1-C2-COOH is ideal for synthesizing custom bifunctional degraders and exploring structure-activity relationships in drug discovery and chemical biology applications.