Fluorescein (FAM) is a bright fluorophore that has found an extremely wide application in life science research. The fluorophore is hydrophilic and its derivatives possess good solubility in aqueous buffers. Fluorescein is compatible with a wide variety of fluorescent instrumentation - most instruments are equipped with FAM channel filters. This product contains the pure 6-isomer of fluorescein.
Absorption Maxima
494 nm
Extinction Coefficient
75000 M-1cm-1
Emission Maxima
520 nm
Fluorescence Quantum Yield
0.9
CAS Number
92557-81-8
CF260
0.20
CF280
0.17
Mass Spec M+ Shift after Conjugation
358.0
Purity
95% (by 1H NMR and HPLC-MS).
Molecular Formula
C25NO9H15
Molecular Weight
473.39 kDa
Product Form
Yellow crystalline solid.
Solubility
Good in DMF and DMSO.
Storage
Shipped at room temperature. Upon delivery, store in the dark at -20°C. Avoid prolonged exposure to light. Desiccate.
Disclaimer
This product is for research use only. It is not intended for diagnostic or therapeutic use.
