Cat. # Quantity Price Lead time
2065-1g 1 g $120.00 in stock
2065-5g 5 g $350.00 in stock
2065-25g 25 g please inquire in stock

PEGs are useful hydrophilic linkers for the bioconjugation. Diethyleneglycol, or PEG2, is a short PEG linker. This bifunctional molecule has an amino group that can be engaged in acylation reaction with anhydrides and activated esters, reductive amination with aldehydes and ketones, and alkylation with halogenides and epoxides, just to list a few reactions. Its terminal alkyne group reacts with azides in copper-catalyzed CuAAc reaction, and palladium-catalyzed Sonogashira coupling with aryl- and vinyl halides and triflates.

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Alkyne-PEG3-OH is a triethyleneglycol based bifunctional linker with a hydroxyl group and an alkyne fragment.


Alkyne PEG3 amine is a medium length heterobifunctional linker for the conjugation.


A bifunctional linker molecule containing both terminal alkyne moiety for Click chemistry, and amine group. Contains a long hydrophilic PEG4 arm.

General properties

Appearance: colorless to yellow liquid
Molecular weight: 143.18
CAS number: 944561-44-8
Molecular formula: C7H13NO2
IUPAC name: 2-[2-(2-propynyloxy)ethoxy]ethylamine
Solubility: soluble in water, polar organic solvents
Quality control: NMR 1H, GC-MS (95%)
MSDS: Download
Product specifications
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