This product has a shelf life of 3 years.
D5637
3,3′-Diaminobenzidine tetrahydrochloride hydrate
≥96%
Sinonimo/i:
(1,1′-Biphenyl)-3,3′,4,4′-tetramine tetrahydrochloride dihydrate
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1 G
CHF 62.90
5 G
CHF 218.00
10 G
CHF 399.00
25 G
CHF 864.00
50 G
CHF 1’240.00
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Cambia visualizzazione
1 G
CHF 62.90
5 G
CHF 218.00
10 G
CHF 399.00
25 G
CHF 864.00
50 G
CHF 1’240.00
About This Item
Formula condensata:
C12H14N4 · 4HCl · xH2O
Numero CAS:
Numero CE:
Numero MDL:
Codice UNSPSC:
12171500
ID PubChem:
NACRES:
NA.47
Prodotti consigliati
Livello qualitativo
Saggio
≥96%
Stato
powder, crystals or chunks
tecniche
titration: 96-104% (with NaOH)
Colore
white to light brown, and Faint Red and Faint Grey to Light Grey
Punto di fusione
280 °C
Solubilità
H2O: 50 mg/mL
applicazioni
diagnostic assay manufacturing
hematology
histology
Temperatura di conservazione
−20°C
Stringa SMILE
O.Cl.Cl.Cl.Cl.Nc1ccc(cc1N)-c2ccc(N)c(N)c2
InChI
1S/C12H14N4.4ClH.H2O/c13-9-3-1-7(5-11(9)15)8-2-4-10(14)12(16)6-8;;;;;/h1-6H,13-16H2;4*1H;1H2
DXWSCXIZIHILNP-UHFFFAOYSA-N
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Descrizione generale
3,3′-Diaminobenzidine tetrahydrochloride hydrate is a chromogen commonly used in immunohistochemistry and other staining techniques to visualize the presence of antigens or antibodies in biological samples. DAB HCl is designed as an immunohistology stain to visualize peroxidase activity in cells. DAB oxidation can be measured using a spectrophotometer.
Applicazioni
3,3′-Diaminobenzidine tetrahydrochloride hydrate is suitable for immunohistology staining procedures, western blotting, and FISH (fluorescence in situ hybridization). DAB is used in studying epithelial cell apoptosis in the event of early cataracts, and immunohistochemistry protocols of autosomal dominant polycystic kidney disease (PKD).
Azioni biochim/fisiol
In the peroxidase reaction, DAB serves as a hydrogen donor in the presence of peroxide. The oxidized DAB forms an insoluble brown-colored complex.
Avvertenze
Danger
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Acute Tox. 4 Oral - Carc. 1B - Eye Irrit. 2 - Muta. 2
Codice della classe di stoccaggio
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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Articoli
NBT-BCIP substrate system aids in western blotting and immunohistological staining, producing a blue-purple insoluble end product.
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What is the shelf life of Product D5637, 3,3´-Diaminobenzidine tetrahydrochloride hydrate (DAB)?
1 answer-
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What is Product D5637, 3,3´-Diaminobenzidine tetrahydrochloride hydrate (DAB), soluble in?
1 answer-
DAB HCl is soluble in water at 50 mg/ml yielding a clear to slightly hazy solution. For consistency, it is important to allow DAB to come to room temperature before making solutions. Water quality is extremely important, so only high quality deionized or distilled water should be used to make DAB solutions.
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Can the solutions of Product D5637, 3,3´-Diaminobenzidine tetrahydrochloride hydrate (DAB), be filtered?
1 answer-
DAB solution may be filtered through a 0.2 micron filter immediately prior to use.
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What is the solution stability of Product D5637, 3,3´-Diaminobenzidine tetrahydrochloride hydrate (DAB)?
1 answer-
In our experience, solutions of DAB should be made immediately prior to use for best results. If and only if necessary, solutions can be kept in the dark and refrigerated for overnight storage. Based on our Immunology Department’s experience, storing the solution overnight did not give good reproducibility. However, the literature indicates that it is possible to store solutions of DAB at -20°C. DAB dissolved in Tris buffered saline (pH 7.6) at 0.6 mg/ml was reported to be stable for several weeks at 4°C.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Do you have a staining protocol for Product D5637, 3,3´-Diaminobenzidine tetrahydrochloride hydrate (DAB)?
1 answer-
Dissolve 10 mg in 15 mL of Tris buffered saline, pH 7.6 (Tris-buffered saline tablet, Sigma Product No. T5030 may be used). Add 12 uL of fresh 30% hydrogen peroxide (Sigma Product No. H1009) prior to use. Solution may be filtered through a 0.2 micron filter immediately prior to use if necessary. DAB and hydrogen peroxide concentrations may be adjusted to suit individual applications. The stain can be enhanced with Ni. Make up 0.3% (w/v) NiCl2 in water. Add 1 mL of the NiCl2 stock to 9 mL DAB solution.
Helpful?
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How is Product D5637, 3,3´-Diaminobenzidine tetrahydrochloride hydrate (DAB), shipped and stored?
1 answer-
The product is shipped at ambient temperature. However, it is stored at -20 degrees C for long term storage.
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