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Merck

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:
24893981
UNSPSC Code:
12352204
EC Number:
231-018-9
MDL number:
MFCD00012969
Beilstein/REAXYS Number:
1212988

Key Documents

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Product Name

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

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

SMILES string

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

InChI key

KJDSORYAHBAGPP-UHFFFAOYSA-N

form

tablet

solubility

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

storage temp.

−20°C

Quality Level

200

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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.

Other Notes

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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

Health hazardExclamation mark
GHS08,GHS07

signalword

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

wgk

WGK 3

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SLCF6662
SLCD1660
SLBS4779
SLBQ0700V
SLBN2836V

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

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