Br-PEG4-CH2CH2COOtBu

Supplementary Information:
CAS No.： 564476-32-0 Synonyms： Bromo-PEG4-t-butyl ester Br-PEG4-COOtBu Br-PEG4-C2-Boc 15-Bromo-4,7,10,13-tetraoxapentadecanoic acid tert-butyl ester 3,6,9,12-Tetraoxapentadecan-15-oic acid, 1-bromo-, 1,1-dimethylethylester Purity： ≥95% MF： C15H29BrO6 MW： 385.29 Recommended Storage Condition： Store at -5°C,keep in dry and avoid sunlight. Uses： Applicated in medical research, drug-release, nanotechnology and new materials research, cell culture. In the study of ligand, polypeptide synthesis support, a graft polymer compounds, new materials, and polyethylene glycol-modified functional coatings and other aspects of the active compound. Br-PEG4-CH2CH2COOtBu, also known as Bromo-PEG4-t-butyl ester, is a type of PEG linker featuring a bromide group (Br) and a t-butyl protected carboxyl group (COOtBu). The bromide group acts as a leaving group in nucleophilic substitution reactions, facilitating the conjugation of the linker to biomolecules or other substrates through nucleophilic attack. The t-butyl protected carboxyl group serves as a temporary protecting group for the carboxylic acid functionality, which can be selectively removed under acidic conditions, revealing a reactive carboxyl group for further conjugation reactions.