Sulforhodamine 101 acid chloride

Catalog # Availability Size / Price Qty
Sulforhodamine 101 acid chloride | CAS No. 82354-19-6 | Standard Fluorescein, Coumarin and Rhodamine-based
1 Image
Description: Red fluorescent dye; amine reactive
Alternative Names: Texas Red

Chemical Name: 9-[4-(Chlorosulfonyl)-2-sulfophenyl]-2,3,6,7,12,13,16,17-octahydro-1H,5H,11H,15H-xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium, inner salt

Product Details
Supplemental Products

Biological Activity

Red fluorescent dye for the labeling of amines. Excitation maximum ~ 588 nm; emission maximum ~ 601 nm. Sulforhodamine 101 (Cat. No. 5146) also available.

Optical Data for Sulforhodamine 101 acid chloride

Emission Color Orange
λabs 588 nm
λem 601 nm
Extinction Coefficient (ε) 88000 M-1cm-1
Reactivity Primary amines
Application Flow Cytometry

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 100 mM in ethanol
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. Selective detection of allosteric phosphatase inhibitors.
    Schneider et al.
    J.Am.Chem.Soc., 2013;135:6838

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 SDS / CoA (available online).


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

View all Small Molecule FAQs

Tocris Small Molecules

CLP 290

Reviews for Sulforhodamine 101 acid chloride

There are currently no reviews for this product. Be the first to review Sulforhodamine 101 acid chloride and earn rewards!

Have you used Sulforhodamine 101 acid chloride?

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.