tert-Butyl 1-(Tosyloxy)-3,6,9,12-tetraoxapentadecan-15-oate TCI B5902

Chemical Identity

Other names: 1-(Tosyloxy)-3,6,9,12-tetraoxapentadecan-15-oic Acid tert-Butyl Ester · Tos-PEG5 tert-Butyl Ester
CAS No.: 581065-94-3
PubChem: CID 60146227·SID 468590777
Formula: C22H36O9S
Molecular weight: 476.58 g/mol
Purity: >98.0%(HPLC)(T)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: tert-butyl 3-[2-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethoxy]propanoate
SMILES: CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCOCCC(=O)OC(C)(C)C
InChIKey: GGGJGMGLGUHUMW-UHFFFAOYSA-N
MDL: MDL22574810

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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.