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Description: Green fluorescent dye
Alternative Names: Fluorescein-5-Isothiocyanate, FITC Isomer 1
Chemical Name: 3',6'-Dihydroxy-5-isothiocyanatospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one
Purity: ≥95% (HPLC)
Biological Activity for FITC
FITC is a fluorescent reagent for the labeling of amines. Excitation maximum ~ 495 nm; emission maximum ~ 525 nm.
Optical Data for FITC
| Emission Color | Green |
|---|---|
| Brightness | |
| λabs | 495 nm |
| λem | 525 nm |
| Extinction Coefficient (ε) | 75000 M-1cm-1 |
| Quantum Yield (φ) | 0.92 |
| Closest Laser line | 488 nm |
| Reactive Group | Isothiocyanate |
| Reactivity | Primary amines |
| Cell Permeable | Yes |
Plan Your Experiments
Use our spectra viewer to interactively plan your experiments, assessing multiplexing options. View the excitation and emission spectra for our fluorescent dye range and other commonly used dyes.
Spectral Viewer
Technical Data for FITC
| M. Wt | 389.38 |
| Formula | C21H11NO5S |
| Storage | Store at -20°C |
| Purity | ≥95% (HPLC) |
| CAS Number | 3326-32-7 |
| PubChem ID | 18730 |
| InChI Key | MHMNJMPURVTYEJ-UHFFFAOYSA-N |
| Smiles | OC1=CC=C(C2(C(C=CC(N=C=S)=C3)=C3C(O2)=O)C(C=CC(O)=C4)=C4O5)C5=C1 |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for FITC
| Solvent | Max Conc. mg/mL | Max Conc. mM | |
|---|---|---|---|
| Solubility | |||
| DMSO | 38.94 | 100 |
Preparing Stock Solutions for FITC
The following data is based on the product molecular weight 389.38. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 2.57 mL | 12.84 mL | 25.68 mL |
| 5 mM | 0.51 mL | 2.57 mL | 5.14 mL |
| 10 mM | 0.26 mL | 1.28 mL | 2.57 mL |
| 50 mM | 0.05 mL | 0.26 mL | 0.51 mL |
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Product Datasheets for FITC
References for FITC
References are publications that support the biological activity of the product.
Yang et al (2014) A novel CXCR4-selective high-affinity fluorescent probe and its application in competitive binding assays. Biochemistry 53 4881 PMID: 25058910
If you know of a relevant reference for FITC, please let us know.
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Keywords: FITC, FITC supplier, fluorescent, reagents, labeling, amines, Fluorescein-5-Isothiocyanate, Isomer1, dyes, FITC, Isomer, 1, Standard, Fluorescein,, Coumarin, and, Rhodamine, Dyes, Flow, Cytometry, 5440, Tocris Bioscience
1 Citation for FITC
Citations are publications that use Tocris products. Selected citations for FITC include:
Meyer et al (2012) Lipidic nanocapsule drug delivery: neuronal protection for cochlear implant optimization. Int J Nanomedicine 7 2449 PMID: 22654517
Do you know of a great paper that uses FITC from Tocris? Please let us know.
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Literature in this Area
Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* your copy today!
*Please note that Tocris will only send literature to established scientific business / institute addresses.
Fluorescent Probes and Dyes Research Product Guide
This product guide provides a background to the use of Fluorescent Probes and Dyes, as well as a comprehensive list of our
- Fluorescent Dyes
- Dyes for Flow Cytometry
- Fluorescent Probes
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- Bioluminescent Substrates
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