TCI B5902 tert-Butyl 1-(Tosyloxy)-3,6,9,12-tetraoxapentadecan-15-oate is a heterobifunctional PEG linker designed for PEGylation applications in chemical biology research. This compound features a tosyl leaving group at one terminus for nucleophilic substitution and a tert-butyl ester-protected carboxylic acid at the other, enabling selective conjugation to biomolecules such as proteins, peptides, or small-molecule drugs. It is commonly employed in the development of drug conjugates, drug delivery systems, and biomolecular interaction studies.
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