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Merck
CN

D5905

3,3′-Diaminobenzidine tetrahydrochloride

peroxidase substrate, chromogenic, tablet

Synonym(s):

3,3′,4,4′-Biphenyltetramine tetrahydrochloride, 3,3′,4,4′-Tetraaminobiphenyl tetrahydrochloride, DAB

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About This Item

Linear Formula:
(NH2)2C6H3C6H3(NH2)2 · 4HCl
Molecular Weight:
360.11
NACRES:
NA.83
PubChem Substance ID:
UNSPSC Code:
12352204
EC Number:
231-018-9
MDL number:
Beilstein/REAXYS Number:
1212988
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Product Name

3,3′-Diaminobenzidine tetrahydrochloride, tablet, 10 mg substrate per tablet

Quality Level

form

tablet

solubility

water: 1 tablet/15 mL (may contain small insoluble particles)

storage temp.

−20°C

SMILES string

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

InChI

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

InChI key

KJDSORYAHBAGPP-UHFFFAOYSA-N

Application

3,3′-Diaminobenzidine tetrahydrochloride has been used for immunohistochemistry.
Reagent for spectrophotometric determination of selenium.

Biochem/physiol Actions

3,3′-Diaminobenzidine tetrahydrochloride is a chromogenic substrate, which is commonly used in immunoperoxidase tests.
Peroxidase substrate suitable for use in immunoblotting and immunohistological staining procedures. This substrate produces an insoluble end product that is brown in color and can be observed visually.

Preparation Note

Dissolve 1 tablet in 15 ml of Tris-buffered saline, pH 7.6. Add 12 μl of fresh 30% hydrogen peroxide. DAB and hydrogen peroxide concentration may be adjusted to suit individual applications.


pictograms

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 1B - Eye Irrit. 2 - Muta. 2

Storage Class

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

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

危险化学品

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Articles

硝基蓝四唑(NBT)可与碱性磷酸酶底物5-溴-4-氯-3-吲哚基磷酸盐(BCIP)一起用于蛋白印迹和免疫组织染色程序。这些底物系统产生不溶的NBT二甲终产物,其颜色为蓝至紫色,可以通过视觉观察到。

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

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