Thioflavin T

Catalog # Availability Size / Price Qty
Thioflavin T | CAS No. 2390-54-7 | Fluorescent Amyloid B Probes
1 Image
Description: Fluorescent amyloid stain, binds to the stacked β sheets of amyloid fibrils

Chemical Name: 2-[4-(Dimethylamino)phenyl]-3,6-dimethylbenzothiazolium chloride

Purity: ≥95%

Product Details

Biological Activity

Thioflavin T is a cell-permeable fluorescent amyloid stain. This cationic benzothiazole dye increases in fluorescence upon binding to the stacked β sheets of amyloid fibrils. Thioflavin T is used to confirm formation of β sheet structure from mutant huntingtin exon-1 aggregates (Ex1Q48) in vitro. Thioflavin T is also used to monitor the kinetics of in vitro polyglutamine amyloid formation of tNhtt-42Q aggregates in a Huntington's disease cell model. Insoluble senile plaques of Aβ in brain tissues are commonly stained with Thioflavin T. Excitation/emission maxima = 440/485 nm.

This product is supplied with a high degree of hydration and some residual inorganic salts, the amount of which are batch dependent. Please refer to the Certificate of Analysis to obtain the batch specific Net Product Content.

Optical Data for Thioflavin T

Emission Color Blue
λabs 440 nm
λem 485 nm
Extinction Coefficient (ε) 31600 M-1cm-1
Quantum Yield (φ) 0.43
Cell Permeable Yes
Application Amyloid Stain

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

Spectral Viewer

Technical Data

Soluble to 5 mM in DMSO and to 10 mM in water
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.

Product Datasheets

Reconstitution Calculator
Molarity 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.


Molarity Calculator


*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and CoA (available online).


No product specific FAQs exist for this product, however you may

View all Small Molecule FAQs

Reviews for Thioflavin T

There are currently no reviews for this product. Be the first to review Thioflavin T and earn rewards!

Have you used Thioflavin T?

Submit a review and receive an Amazon gift card.

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review
Tocris Bioscience is the leading supplier of novel and exclusive tools for life science research with over 30 years' experience in the industry. Tocris is a Bio-Techne brand.