Medchemexpress LLC FITC-Dextran MW 400 | 60842-46-8 | 40,000 (average) | 5 MG

Supplier:  Medchemexpress LLC HY128868D5MG

FITC-dextran (average molecular weight 40,000) is a fluorescein isothiocyanate-labeled dextran polymer used as a fluorescent tracer for permeability and cell-damage studies. It produces bright green fluorescence (Ex 495 nm/488 nm; Em 525 nm) and is commonly applied to assess barrier integrity, visualize paracellular permeability, and detect heat shock-induced cell damage or apoptosis in microscopy and permeability assays.

• Bright green fluorescence suitable for microscopy and flow cytometry (Ex 495/488 nm; Em 525 nm).
• Average molecular weight ≈ 40,000 for tracer and permeability experiments.
• Useful for barrier integrity assays, including blood-brain barrier and epithelial permeability.
• Polydisperse polymer provides size-dependent permeability information.
• Supplied in small laboratory quantities for convenient assay setup.

Catalog No. 50-002-62179