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AB0100

Sigma-Aldrich

Alkaline Phosphatase Blue Microwell Substrate

sufficient for 400 mL working substrate

Synonym(s):

5-bromo-4-chloro-3-indolyl phosphate analog / NBT substrate for microwell assays

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About This Item

UNSPSC Code:
12352204
NACRES:
NA.83

form

solution

Quality Level

200

usage

sufficient for 400 mL working substrate

storage temp.

2-8°C

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General description

Alkaline phosphatase blue microwell substrate, a two-component mixture develops a bluish-purple product when reacted with alkaline phosphatase in microwell type assays. This substrate is not recommended for membrane or immunohistochemical type assays that require an insoluble reaction product.

Application

Prior to reaction with alkaline phosphatase, the BCIP® reagent is colorless to faint blue solution, and the Nitro BT reagent is a yellow solution. The two component mixture develops a bluish-purple product when reacted with alkaline phosphatase in microwell type assays. This substrate is not recommended for membrane or immunohistochemical type assays that require a precipitation reaction product.

Physical form

A 2 component kit sufficient for preparing 400 mL of working substrate.
Supplied as a 2 component buffered alkaline phosphatase substrate containing Bromo-Chloro-Indolylphosphate (BCIP) and Nitro Blue Tetrazolium (NBT/Thiazolyl Blue/Nitro BT)

Legal Information

BCIP is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Tandrima Mitra et al.
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Articles

Colorimetric Alkaline Phosphatase and Peroxidase Substrate Detection Systems

Nitroblue Tetrazolium (NBT) is used with the alkaline phosphatase substrate 5-Bromo- 4-Chloro-3-Indolyl Phosphate (BCIP) in western blotting and immunohistological staining procedures. These substrate systems produce an insoluble NBT diformazan end product that is blue to purple in color and can be observed visually.

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