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902578

Sigma-Aldrich

Hydroxy-PEG6-t-butyl ester

≥95%

Synonym(s):

tert-Butyl 1-hydroxy-3,6,9,12,15,18-hexaoxahenicosan-21-oate, HO-PEG6-CO-OtBu

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About This Item

Empirical Formula (Hill Notation):
C19H38O9
CAS Number:
Molecular Weight:
410.50
UNSPSC Code:
51171641
NACRES:
NA.22

Assay

≥95%

form

liquid

reaction suitability

reagent type: cross-linking reagent

refractive index

n/D 1.454

density

1.068

functional group

ester
hydroxyl

storage temp.

−20°C

SMILES string

O=C(OC(C)(C)C)CCOCCOCCOCCOCCOCCOCCO

InChI

1S/C19H38O9/c1-19(2,3)28-18(21)4-6-22-8-10-24-12-14-26-16-17-27-15-13-25-11-9-23-7-5-20/h20H,4-17H2,1-3H3

InChI key

VGGDPFAYSOSIOK-UHFFFAOYSA-N

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 hydrophillic PEG linker facilitates solubility in biological applications. Hydroxy-PEG6-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 roteolysis-targeting chimeras (PROTAC® molecules) for targeted protein degradation.

Legal Information

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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