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Merck

902691

Hydroxy-PEG5-t-butyl ester

Synonym(s):

tert-Butyl 1-hydroxy-3,6,9,12,15-pentaoxaoctadecan-18-oate, HO-PEG5-CO-OtBu

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About This Item

Empirical Formula (Hill Notation):
C17H34O8
CAS Number:
Molecular Weight:
366.45
UNSPSC Code:
51171641
MDL number:
Assay:
≥95%
Form:
liquid
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assay

≥95%

form

liquid

reaction suitability

reagent type: cross-linking reagent

refractive index

n/D 1.448

density

1.071

functional group

ester, hydroxyl

storage temp.

−20°C

SMILES string

O=C(OC(C)(C)C)CCOCCOCCOCCOCCOCCO

Application

This heterobifunctional, PEGylated crosslinker features a hydroxyl group at one end and t-butyl-protected carboxylic acid at the other, which can be deprotected with acidic conditions. The hydrophilic PEG linker facilitates solubility in biological applications. Hydroxy-PEG5-t-butyl ester can be used for bioconjugation or as a building block for synthesis of small molecules, conjugates of small molecules and/or biomolecules, or other tool compounds for chemical biology and medicinal chemistry that require ligation. Examples of applications include its synthetic incorporation into antibody-drug conjugates or proteolysis-targeting chimeras (PROTAC® molecules) for targeted protein degradation.

Technology Spotlight: Degrader Building Blocks for Targeted Protein Degradation

Legal Information

PROTAC is a registered trademark of Arvinas Operations, Inc., and is used under license


Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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