ChemicalBook--->CAS DataBase List--->875770-32-4

875770-32-4

875770-32-4 Structure

875770-32-4 Structure
IdentificationBack Directory
[Name]

Propargyl-PEG4-Tos
[CAS]

875770-32-4
[Synonyms]

Propargyl-PEG4-Tos
Propargyl-PEG5-Tos
3,6,9,12-tetraoxapentadec-14-yn-1-yl 4-methylbenzene-1-sulfonate
3,6,9,12-Tetraoxapentadec-14-yn-1-ol, 1-(4-methylbenzenesulfonate)
[Molecular Formula]

C18H26O7S
[MDL Number]

MFCD28950765
[MOL File]

875770-32-4.mol
[Molecular Weight]

386.46
Chemical PropertiesBack Directory
[Boiling point ]

498.1±45.0 °C(Predicted)
[density ]

1.177±0.06 g/cm3(Predicted)
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319
[Precautionary statements ]

P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Hazard InformationBack Directory
[Description]

Propargyl-PEG5-Tos is a PEG linker containing a tosyl group and a propargyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The propargyl group can react with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage.
[Biological Activity]

Propargyl-PEG4-Tos is a PROTAC linker belonging to the PEG class and can be used to synthesize a series of PROTAC molecules. It is a cleavable ADC linker for the synthesis of antibody-drug conjugates (ADCs).
[in vitro]

PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker.

[target]

PEGs

Cleavable

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