BocNH-PEG4-CH2CH2COOH; 2,2-dimethyl-4-oxo-3,8,11,14,17-pentaoxa-5-azaicosan-20-oic acid; CAS No.: 756525-91-4; ChemShuttle, operating as a custom chemical synthesis company, offers 2,2-dimethyl-4-oxo-3,8,11,14,17-pentaoxa-5-azaicosan-20-oic acid within its chem blocks category. This compound serves as a valuable intermediate in developing novel pharmaceutical agents, particularly in heterocyclic chemistry applications. Our small molecules synthesis division specializes in customizing such cycle compounds to client specifications, supporting drug discovery projects. As a Library of Compounds, we provide researchers with access to high-purity various organic chemicals, supported by comprehensive documentation and quality assurance to facilitate scientific progress.