Bifunctional diethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

A bifunctional molecule containing tyramide and alkyne residues for clickable ascorbate peroxidase 2 (APEX2) protein labeling.

Bifunctional reactive crosslinker containing terminal alkyne group for click chemistry or Sonogashira coupling, and reactive alkyl iodide group.

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on diethyleneglycol (PEG2).

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

Bifunctional triethyleneglycol linker with terminal alkyne and carboxylic acid moieties.

PEG3 with alkyne and iodide functional groups, a reactive and hydrophilic linker for alkylation and click chemistry.

Bifunctional spacer with alkyne and maleimide groups for conjugation of biomolecules.

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on triethyleneglycol (PEG3).

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