Cat. # Quantity Price Lead time
2025-100mg 100 mg $95.00 in stock
2025-1g 1 g $390.00 in stock

Alkyne-PEG4-Amine is a bifunctional oligoethylene glycol linker containing both amine group for the easy attachment to various electrophilic reagents (NHS esters, epoxides etc), and alkyne group for Click chemistry. This allows a smooth conjugation of different biomolecules.

Reasonably long, highly hydrophilic PEG4 linker ensures smooth conjugation, and separation of conjugated fragments in aqueous solutions.

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PEG4 amine azide (CAS# 134179-38-7) is a bifunctional linker with amine and azide functional groups. It is based on a tetraethyleneglycol core. The length of the PEG4 linker is 1.4 nm.


A bifunctional compound containing carboxylic acid functional group, and iodide, an active halogen group.


Water soluble, heterobifunctional hydrophilic linker with a length of 14 Å, containing maleimide for thiol labeling, and alkyne for Click chemistry. An ideal reagent to attach an alkyne moiety to a protein.

General properties

Appearance: yellowish oil
Molecular weight: 231.29
CAS number: 1013921-36-2
Molecular formula: C11H21NO4
IUPAC name: 3,6,9,12-Tetraoxapentadec-14-yn-1-amine
Solubility: good in polar organic solvents (DMF, DMSO, alcohols, chlorinated organic solvents)
Quality control: NMR 1H, GC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications
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