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145916-41-2

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145916-41-2 Structure

145916-41-2 Structure
IdentificationBack Directory
[Name]

Propargyl-PEG2-Tos
[CAS]

145916-41-2
[Synonyms]

Propargyl-PEG2-Tos
2-(prop-2-yn-1-yloxy)ethyl 4-methylbenzenesulfonate
Ethanol, 2-(2-propyn-1-yloxy)-, 1-(4-methylbenzenesulfonate)
[Molecular Formula]

C12H14O4S
[MDL Number]

MFCD29764327
[MOL File]

145916-41-2.mol
[Molecular Weight]

254.3
Chemical PropertiesBack Directory
[form ]

Liquid
[color ]

Colorless to light yellow
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319-H335
[Precautionary statements ]

P261-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P362-P403+P233-P501
Hazard InformationBack Directory
[Description]

Propargyl-PEG2-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.
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