TFAX 568, SE

Catalog # Availability Size / Price Qty
TFAX 568, SE | CAS No. 878549-44-1 | TFAX Dyes
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Description: Orange fluorescent dye; amine reactive

Chemical Name: 6-[2-Carboxy-4(5)-[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]phenyl]-1,2,10,11-tetrahydro-2,2,10,10-tetramethyl-4,8-bis(sulfomethyl)pyrano[3,2-g:5,6-g']diquinolin-13-ium inner salt

Product Details

Biological Activity

Amine reactive orange fluorescent dye. Insensitive to pH in the range 4 - 10. Forms bright and photostable conjugates with proteins and antibodies. Suitable for use in flow cytometry, 2-photon excitation microscopy, and super resolution mircoscopy techniques, such as dSTORM. Excitation maximum = 578 nm; emission maximum = 602 nm; quantum yield = 0.69; extinction coefficient = 60720 M-1cm-1.

Optical Data for TFAX 568, SE

Emission Color Orange
λabs 578 nm
λem 602 nm
Extinction Coefficient (ε) 88,000 M-1cm-1
Quantum Yield (φ) 0.69
Closest Laser line 568 nm
Reactive Group NHS ester
Reactivity Primary amines
Alternative For Alexa Fluor® 568, Rhodamine red

Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company.

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Technical Data

Soluble in DMSO
Store at -20°C

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.

Background References

  1. Alexa dyes, a series of new fluorescent dyes that yield exceptionally bright, photostable conjugates.
    Panchuk?Voloshina et al.
    J.Histochem.Cytochem., 1999;47:1179
  2. Direct stochastic optical reconstruction microscopy with standard fluorescent probes
    Van de Linde et al.
    Nature Protocols, 2011;6:991
  3. Super-resolution imaging of aquaporin-4 orthogonal arrays of particles in cell membranes.
    Rossi et al.
    J.Cell Sci., 2012;125:4405

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