Fluorescein-PEG4-azide is a heterofunctional fluorescent PEG analogue containing an azide group, which enables Click Chemistry. The hydrophilic PEG spacer arm increases solubility in aqueous media. The FITC group (Fluorescein) can be easily traced from its yellow color and green fluorescence. References: Chen X, Zhang X, Wang HY, Chen Z, Wu FG. Subcellular Fate of a Fluorescent Cholesterol-Poly(ethylene glycol) Conjugate: An Excellent Plasma Membrane Imaging Reagent. Langmuir. 2016 Oct 4;32(39):10126-10135. Epub 2016 Sep 21. PubMed PMID: 27597442.

纯度：≥98%

CAS：1454662-54-4