You Searched For: 2-Nitrophenyl+\u03B1-D-galactopyranoside


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Supplier: MP Biomedicals
Description: 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.

Catalog Number: (470091000.)
Supplier: Thermo Scientific
Description: Sucralose 98%
UOM: 1 * 100 g

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Supplier: Alfa Aesar
Description: Substrate for beta-galactosidase

Supplier: Alfa Aesar
Description: A synthetic sweetener approximately 600 times sweeter than sucrose. Activates T1R2/T1R3 sweet taste receptors on enteroendocrine cells

Supplier: Spectrum Chemical
Description: Sucralose NF

Catalog Number: (8.43075.0025)
Supplier: Merck
Description: 4-Nitrophenyl acetate, Sigma-Aldrich®
UOM: 1 * 25 g


Supplier: Spectrum Chemical
Description: Sucralose, FCC is used as an artificial sweetener products that require a longer shelf life. The FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage and nutritional supplement applications. Spectrum Chemical offers over 300 Food grade chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

Catalog Number: (73741-5ML)
Supplier: Merck
Description: 2-Nitrophenyl pentyl ether, Supelco®
UOM: 1 * 5 mL


Supplier: Merck
Description: 2-Nitrophenyl octyl ether, Supelco®

Catalog Number: (335495-5G)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Tris(4-nitrophenyl)amine, technical, Sigma-Aldrich®
UOM: 1 * 5 g


Catalog Number: (372048-5G)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: NLO material
UOM: 1 * 5 g


Catalog Number: (46092-250MG-F)
Supplier: Merck
Description: [12-(4-Ethylphenyl)dodecyl] 2-nitrophenyl ether is a plasticizer mainly used during electrode preparation.
UOM: 1 * 250 mg


Supplier: SIGMA ALDRICH MICROSCOPY
Description: Iodonitrotetrazolium chloride has been used for the staining of cells. It has been used as a coupling agent in the enzymatic assay of D-arabinitol.

Catalog Number: (44224-5ML)
Supplier: Merck
Description: Plasticizer for solvent polymeric membranes in ion-selective electrodes.
UOM: 1 * 5 mL


Catalog Number: (0364-25G)
Supplier: VWR Chemicals
Description: Preferred substrate for high sensitivity detection of alkaline phosphatase in EIA assays. Read at 405 nm.
UOM: 1 * 25 g

Supplier: APOLLO SCIENTIFIC
Description: 2-(4-Nitrophenyl)imidazole

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on +353 1 88 22222.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at eurega_services@eu.vwr.com
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This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service on +353 1 88 22222.
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