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D4293

Sigma-Aldrich

3,3′-Diaminobenzidine

SIGMAFAST, chromogenic, tablet

Synonym(s):

DAB tablets

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.83
Pricing and availability is not currently available.

Product Name

SIGMAFAST 3,3′-Diaminobenzidine tablets, tablet, To prepare 5 mL

Quality Level

form

tablet

storage temp.

−20°C

SMILES string

Nc1ccc(cc1N)-c2ccc(N)c(N)c2

InChI

1S/C12H14N4/c13-9-3-1-7(5-11(9)15)8-2-4-10(14)12(16)6-8/h1-6H,13-16H2

InChI key

HSTOKWSFWGCZMH-UHFFFAOYSA-N

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Application

Developed for use in immunohistology and immunoblotting as a precipitating substrate for the localization of peroxidase activity. DAB is the immunohistology substrate of choice as it produces an intense brown-black stain which is resistant to alcohol. Slides stained with DAB may be dehydrated, mounted in resinous media, and stored for future reference. SIGMAFAST DAB Tablets require no additional buffers or steps to prepare an active substrate solution. Tablets are individually packaged in foil packets
SIGMAFAST 3,3′-Diaminobenzidine tablets has been used as a chromogen for visualization in immunohistochemistry of gonad tissue,[1] thymus,[2] dental chronic periapical lesions[3] and gall bladder sections.[4]

Reconstitution

Each tablet set dissolved in 5 mL deionized water yields a ready-to-use buffered solution containing DAB and urea hydrogen peroxide.

Legal Information

SIGMAFAST is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Statements

Hazard Classifications

Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Increased Bax/Bcl-2 ratio up-regulates caspase-3 and increases apoptosis in the thymus of patients with myasthenia gravis
Salakou S, et al.
In Vivo, 21(1), 123-132 (2007)
Interstitial cells of Cajal are present in human extrahepatic bile ducts
Ahmadi O, et al.
Journal of Gastroenterology and Hepatology, 25(2), 277-285 (2010)
Expression of pluripotent stem cell markers in the human fetal testis
Kerr CL, et al.
Stem Cells, 26(2), 412-421 (2008)
Receptor activator NFkappaB-ligand and osteoprotegerin protein expression in human periapical cysts and granulomas
Menezes R, et al.
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics, 102(3), 404-409 (2006)
Ivó H Hernández et al.
Acta neuropathologica, 134(6), 839-850 (2017-09-02)
Activating transcription factor-5 (ATF5) is a stress-response transcription factor induced upon different cell stressors like fasting, amino-acid limitation, cadmium or arsenite. ATF5 is also induced, and promotes transcription of anti-apoptotic target genes like MCL1, during the unfolded protein response (UPR)

Articles

NBT-BCIP substrate system aids in western blotting and immunohistological staining, producing a blue-purple insoluble end product.

Questions

1–2 of 2 Questions  
  1. Hello, your product D4293, SIGMAFAST™ 3,3′-Diaminobenzidine tablets, can be used for how many months after dissolving in 5ml of distilled water?

    1 answer
    1. This product is a set of two tablets - one DAB tablet and one Urea Hydrogen Peroxide tablet. When prepared according to instructions, the solution should be used within one hour for best results.

      Helpful?

  2. Hello, Can https://www.sigmaaldrich.com/US/en/product/sigma/d4293?icid=sharepdp-clipboard-copy-productdetailpage this product be used to develop western blots? Thank you, Regards Vanda

    1 answer
    1. D4293, SIGMAFAST™ 3,3′-Diaminobenzidine tablets, can be used for WB on PVDF membranes, please see attached reference paper stating below: "The PVDF was then collected and rinsed 3 times for 5–10 min each wash with TBS. The blot was then developed appropriately with 3',3-Diaminobenzidine tablets for developing peroxidase (D4293 Sigma-Aldrich) and BCIP/NBT for alkaline phosphatase (B5655 Sigma-Aldrich) and the blot was imaged."Scientific Neurogenic marker expression in differentiating human adipose derived adult mesenchymal stem cells Neus Gomila Pelegri1,2, Bruce K. Milthorpe1 , Catherine A. Gorrie2 , Jerran Santos1. Stem Cell Investig 2023;10:7

      Helpful?

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