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Catalog ID 7023 / 1 g

FITC isomer I *Single Isomer*

AKA: Fluorescein-5-isothiocyanate
Formula Weight CAS#
C21H11NO5S 389.38 3326-32-7
For 25+ Units, Contact us.

Amine-Reactive Fluorescent probe for labeling of proteins as well as the microsequencing of proteins and peptides. This amine-reactive fluorescein derivative has been the most common fluorescent derivatization reagent for covalently labeling of proteins

Product Size 1 g
Form Orange Solid
Absorption (estimated) Wavelength (λmax) 494 ± 3 nm (Buffer pH 10)
Fluorescence (estimated) Wavelength (λmax) 520 ± 4 nm (*Buffer pH 10)
Storage conditions Freeze: Store at -5 to -30°C (F) Protect from moisture (D) Protect from light (L)
MDL# MFCD00005063

* Fluorescein-5-isothiocyanate
* Spiro(isobenzofuran-1(3H),9'-(9H) xanthen)-3-one, 3',6'-dihydroxy-5-isothiocyanato-
* C21H11NO5S

Reactive Probes and Related Products:   Activated, Amine-Reactive [Isothiocyanate, Succinimydyl Ester (SE), Sulfonyl Halide, TFP Ester, NBD-Cl, NBD-F, etc.]
Excitation and Emision Ranges:   Excitation: 490-500 nm and Emission: 510-525 nm
Label or Dye:   FITC (Fluorescein)
Fluorescent Probes and Related Products:   Fluorescein, Naphthofluorescein and seminaphthofluorescein
Amine-Reactive Fluorophores, Biotins and Other Labels:   Isothiocyanate

Safety Data Sheet
SDS-PDF
Certificates of Analysis
Lot 52410 01-Aug-2023
Lot 52159 23-Nov-2021
Lot 52140 26-Oct-2021
Lot 51731 23-Oct-2019
Lot 51538 03-Dec-2018
Lot 51147 21-Apr-2017
Lot 50354 03-Mar-2015
Lot 50296 30-Jan-2015
Lot 50249 11-Dec-2014

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