The metal enhancer is cobalt chloride (CoCl2). Cobalt chloride produces a more intense stain which enhances the sensitivity of the assay and allows for visualization of the staining when a standard DAB chromogen would fail to demonstrate the staining.
D0426
DAB with Metal Enhancer
SIGMAFAST™, peroxidase substrate, tablet
Synonym(s):
3,3′-Diaminobenzidine Peroxidase Substrate, DAB Peroxidase Substrate
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About This Item
UNSPSC Code:
12352204
NACRES:
NA.83
Pricing and availability is not currently available.
Product Name
SIGMAFAST™ DAB with Metal Enhancer, tablet
form
tablet
Quality Segment
solubility
water: 1 tablet/5 mL
storage temp.
−20°C
General description
SIGMAFAST™ DAB with Metal Enhancer Tablets require no additional buffers or steps to prepare an active substrate solution for detection of peroxidase activity. Commom use is in immunohistology as a precipitating substrate.
Application
The DAB reaction is enhanced by the addition of CoCl2 and produces a more intense stain which is resistant to alcohol.
SIGMAFAST™ DAB with Metal Enhancer has been used in the visualization of lung tissue sections using immunohistochemistry, dorsal root ganglion (DRG) neurons and immunohistochemical staining for collagen in anterior cruciate ligament (ACL) cells.
Preparation Note
Each tablet set dissolved in 5 mL deionized water yields a ready-to-use buffered solution containing DAB with a metal enhancer.
Legal Information
SIGMAFAST is a trademark of Sigma-Aldrich Co. LLC
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This Item | |||
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| solubility water: 1 tablet/5 mL | solubility water: 1 tablet/5 mL | solubility water: 0.5 tablet/10 mL, clear, colorless | solubility - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form tablet | form tablet | form tablet | form tablet |
| storage temp. −20°C | storage temp. −20°C | storage temp. 2-8°C | storage temp. −20°C |
signalword
Danger
Hazard Classifications
Aquatic Chronic 2 - Carc. 1B - Eye Dam. 1 - Muta. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1
Storage Class
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
wgk
WGK 3
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What is the metal enhancer in Product D0426, SIGMAFAST™ DAB with Metal Enhancer, and what is the purpose of it?
1 answer-
Helpful?
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How can I block endogenous peroxidase activity when using Product D0426, SIGMAFAST™ DAB with Metal Enhancer, in immunohistochemistry?
1 answer-
Endogenous peroxidase activity may be blocked by flooding the slide with a solution of 4 parts methanol and 1 part 3% hydrogen peroxide.
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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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What is a tablet set for Product D0426, SIGMAFAST™ DAB with Metal Enhancer?
1 answer-
This product contains two substrate tablets per tablet set; there is one DAB/cobalt tablet and one urea/hydrogen peroxide tablet. Both tablets must be used in the assay.
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