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910074

Sigma-Aldrich

27,27-Dimethyl-25-oxo-3,6,9,12,15,18,26-heptaoxaoctacosanoic acid

≥95%

Synonym(s):

2-2-2-2-2-2-6 PROTAC® linker, Bifunctional linker, OtBu-PEG6-acid

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About This Item

Empirical Formula (Hill Notation):
C23H44O10
Molecular Weight:
480.59
UNSPSC Code:
12352106

Assay

≥95%

form

liquid

reaction suitability

reagent type: linker

functional group

carboxylic acid
ester

storage temp.

2-8°C

SMILES string

O=C(CCCCCCOCCOCCOCCOCCOCCOCC(O)=O)OC(C)(C)C

Application

This heterobifunctional, PEGylated crosslinker 27,27-dimethyl-25-oxo-3,6,9,12,15,18,26-heptaoxaoctacosanoic acid features a carboxyl group at one end and a t-butyl protected carboxylic acid at the other and exhibits both hydrophobic and hydrophilic moieties for use in biological applications. The linker 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 pproteolysis-targeting chimeras (PROTAC® molecules) for targeted protein degradation where the linker region is referred to as 2-2-2-2-2-2-6.

Legal Information

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Ashton C Lai et al.
Angewandte Chemie (International ed. in English), 55(2), 807-810 (2015-11-26)
Proteolysis Targeting Chimera (PROTAC) technology is a rapidly emerging alternative therapeutic strategy with the potential to address many of the challenges currently faced in modern drug development programs. PROTAC technology employs small molecules that recruit target proteins for ubiquitination and

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