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D4418

Sigma-Aldrich

3,3′-Diaminobenzidine

SIGMAFAST™, chromogenic, tablet

Synonym(s):

DAB, DAB tablets, Immunohistology substrate

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About This Item

CAS Number:
91-95-2
MDL number:
MFCD00007725
UNSPSC Code:
12352204
PubChem Substance ID:
24893872
NACRES:
NA.83

product name

SIGMAFAST™ 3,3′-Diaminobenzidine tablets, tablet, To prepare 15 mL

form

tablet

solubility

water: 1 tablet/5 mL

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

Reconstitution

Each tablet set dissolved in 15 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 Classifications

Acute Tox. 4 Oral - 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

Certificates of Analysis (COA)

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Huiming Yang et al.
Nature communications, 11(1), 2582-2582 (2020-05-24)
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Erin N Scully et al.
Behavioural brain research, 331, 151-158 (2017-05-17)
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International journal of cancer, 145(6), 1635-1647 (2019-06-23)
Uterine serous carcinoma (USC) is a highly aggressive histological subtype of endometrial cancers harboring highly metastatic and chemoresistant features. Our previous study showed that STAT1 is highly expressed in USC and acts as a key molecule that is positively correlated
Jay Li et al.
eLife, 9 (2020-03-24)
Genetic redundancy can be exploited to identify therapeutic targets for inherited disorders. We explored this possibility in DYT1 dystonia, a neurodevelopmental movement disorder caused by a loss-of-function (LOF) mutation in the TOR1A gene encoding torsinA. Prior work demonstrates that torsinA
F Gualtieri et al.
Scientific reports, 9(1), 7129-7129 (2019-05-11)
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Colorimetric Phosphatase/Peroxidase Substrate Systems

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

Protocols

Immunohistochemistry Procedure

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Immunohistochemistry Procedure

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Immunohistochemistry Procedure

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Immunohistochemistry Procedure

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

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