FITC (fluorescein-5-isothiocyanate, fluorescein isothiocyanate isomer I) ≥98% (by TLC) amine-reactive fluorescent dye

Supplier: Biotium

Synonyms: 5-isothiocyanatofluorescein5-FITCFluorescein Isothiocyanate, Isomer IFluorescein Isothiocyanate3',6'-Dihydroxy-5-isothiocyanato-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one

90020.EA 183 GBP
90020.
FITC (fluorescein-5-isothiocyanate, fluorescein isothiocyanate isomer I) ≥98% (by TLC) amine-reactive fluorescent dye
FITC (Fluorescein 5-isothiocyanate, Fluorescein isothiocyanate isomer I)

FITC (fluorescein-5-isothiocyanate) is an amine-reactive fluorescein derivative for labeling proteins or other molecules containing primary amines.


  • λEx/λEm= 492/520 nm
  • ε = 75,000
  • Orange solid soluble in DMF or DMSO
  • Store at -20°C and protect from light, especially in solution

Formula: C₂₁H₁₁NO₅S
MW: 389,381 g/mol
Storage Temperature: Freezer
MDL Number: MFCD00005063
CAS Number: 3326-32-7

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