• Synonyms：
  Fluorescein-PEG-Thiol
  
• Purity：
  ≥95%
• Recommended Storage Condition：
  Store at -5°C,keep in dry and avoid sunlight.
• Uses：
  Applicated in medical research, drug-release, nanotechnology and new materials research, cell culture. In the study of ligand, polypeptide synthesis support, a graft polymer compounds, new materials, and polyethylene glycol-modified functional coatings and other aspects of the active compound.

FITC-PEG-SH is a linear bifunctional PEG reagent with fluorescein dye. The FITC group in FITC-PEG-SH is usually used for staining and tracer labeling of biomolecules and nanoparticles after PEGylation.

The free sulfhydryl groups, SH, and cysteine contained in FITC-PEG-SH can selectively react with maleimide and new metal surfaces (including gold, silver, etc.) to form stable thioether bonds. The thiol group has a high affinity for the gold surface and is widely used for the modification of gold nanoparticles or gold films.