N-(m-PEG4)-N'-(azide-PEG4)-Cy7 is a Cy7 labeled near infrared fluorescent PEG linker containing an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. This reagent can be utilized to produce Cy7-labeled biomolecules for potential in vivo research and drug design related experiments.
