Catalog # Availability Size / Price Qty
Se-NADA | CAS No. 2571574-70-2 | Fluorescent Probes
2 Images
Description: Orange fluorescent benzoselenadiazole D-amino acid (FDAA) for imaging bacteria; also photosensitizer

Chemical Name: 3-((7-Nitro-2,1,3-benzoselenadiazol-4-yl)amino)-D-alanine hydrochloride

Purity: ≥95%

Product Details

Biological Activity

Se-NADA is an orange fluorescent benzoselenadiazole D-amino acid (FDAA) for imaging bacteria. It is covalently incorporated into peptidoglycans in the cell walls of live bacteria. It also acts as a photosensitizer, bringing about bacterial cell death on exposure to visible light. Se-NADA is effective against both Gram-positive and Gram-negative bacteria. Ex/Em = 470/590 nm.

Scientific Data

Fluorescence Imaging Application of Se-NADA in B subtilis bacteria cells View Larger

Application of Se-NADA in B subtilis bacteria cells. Fluorescence microscopy image of B subtilis bacterial cells treated with SeNADA (250 μM, red) proving incorporation of the D-amino acid into the peptidoglycans of the cell wall. Image kindly provided by Dr Erkin Kuru, Department of Genetics, Harvard Medical School, Boston.

Optical Data for Se-NADA

Se-NADA Dye Spectra
Emission Color Orange
λabs 470 nm
λem 590 nm
Cell Permeable Yes
Application Fluorescence Microscopy

Technical Data

Soluble to 10 mM 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.

Additional Information

Licensing Caveats:
Sold under license from the University of Edinburgh

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 Se-NADA

There are currently no reviews for this product. Be the first to review Se-NADA and earn rewards!

Have you used Se-NADA?

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.