18507 Results for: "2-Bromo-3,4,5-trifluorobenzotrifluoride"

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside)

Supplier: G-Biosciences

X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside)

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside), Millipore®

Supplier: Merck Millipore (Calbiochem‎)

X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside), Millipore®

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside), white powder

Supplier: MP Biomedicals

5-Bromo-4-chloro-3-indolyl b-D-galactopyranoside, commonly known as X-Gal, is a histochemical substrate for b-galactosidase. X-Gal is cleaved by b-galactosidase to yield an insoluble blue precipitate.

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside) staining kit

Supplier: OZ BIOSCIENCES

X-Gal staining kit allows to visualise ß-gal expression through hydrolysis of the X-Gal (5-bromo-4-chloro-3-indoyl-beta-D-Galactopyranoside) substrate yielding blue precipitates.

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside), powder, Corning®

Supplier: Corning

X-Gal (5-bromo-4-chloro-3-indolyl-b-D-galactopyranoside) is a substrate of b-galactosidase, a gene product of the lac operon in E. coli.

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D(+)-α-Acetobromoglucose

Supplier: Molekula

D(+)-α-Acetobromoglucose

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside) substrate ≥99%, Molecular Biology Grade

Supplier: OZ BIOSCIENCES

X-Gal substrate is metabolised by the b-galactosidase enzyme. The quality and purity of the substrate is essential to obtain high-quality and reliable results.

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside)

Supplier: G-Biosciences

X-gal (5-bromo-4-chloro-3-indolyl-β-D- galactopyranoside) is used to indicate whether bacteria express the ß-galactosidase enzyme, which is encoded by the lacZ gene. X-gal is cleaved by ß-galactosidase yielding galactose and 5-bromo-4-chloro-3-hydroxyindole, which is oxidised into 5,5'-dibromo-4,4'-dichloro-indigo, an insoluble blue product. Thus, if X-gal and an inducer of ß-galactosidase (usually IPTG) is contained within an agar medium on a culture plate, colonies which have a functional lacZ gene can easily be distinguished by their blue colour.

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X-Gal (5-bromo-4-chloro-3-indolyl-ß-D-galactopyranoside) ≥98%, white powder for molecular biology

Supplier: MP Biomedicals

Storage: Store at -20 °C. Store Desiccated. Store Under Nitrogen. Protect from light.
5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside, commonly known as X−Gal, is a histochemical substrate for β−galactosidase.
5-Bromo-4-Chloro-3-Indolyl-β-D-Galactopyranoside is used as indigogenic substrate for β-galactosidase, for detection of β-galactosidase-positive clones, and the identification of lac and bacterial colonies or phage plaques. It is the substrate of choice for blue-white selection of recombinant bacterial colonies with the lac+ genotype. X−Gal is cleaved by β−galactosidase to yield an insoluble blue precipitate. X−Gal is particularly useful in molecular biology applications to detect the activity of β−galactosidase which is frequently used as a reporter gene. In cloning, X−Gal is used to detect insertion of foreign DNA into the lacZ region of plasmid DNA using α-complementation which is based on vectors such as the pUC and the M13mp series that carry a fragment of the β-galactosidase gene encoding an α-fragment of β-galactosidase.