FITC Antibody

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Product Details
Supplemental Products

FITC Antibody Summary

Detects Fluorescein Isothiocyanate (FITC) and Carboxyfluorescein (CFS) in direct ELISAs. In direct ELISAs, no cross-reactivity with Alexa Fluor® 488, Alexa Fluor® 594, Alexa Fluor® 647, Alexa Fluor® 700, Alexa Fluor® 750, NorthernLights™ NL493, NorthernLights™ 557, and NorthernLights™ 637 is observed.
Monoclonal Mouse IgG Clone # 931845
Protein A or G purified from hybridoma culture supernatant
Fluorescein Isothiocyanate (FITC)
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
8-25 µg/mL
Detects FITC-conjugated and CFS-conjugated antibodies in immunocytochemistry.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: FITC

Fluorescein isothiocyante (FITC) is a derivative of fluorescein modified with an isothiocyanate reactive group (-N=C=S).  FITC is often used to label antibodies for immunofluorescent cytochemistry and histochemistry. FITC can be also conjugated to proteins and RNA and DNA probes because such conjugation does not impair biological activity of these molecules. In some experimental setups FITC fluorescence may need to be enhanced, which is done by employing anti-FITC antibodies conjugated either to FITC or other fluorophores with similar excitation and emission spectra.

Long Name
Fluorescein Isothiocyanate
Alternate Names
FITC; Fluorescein Isothiocyanate

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Reconstitution Buffers

Secondary Antibodies

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