"Microbial Detection"
4-Nitrophenyl-beta-D-xylopyranoside
Supplier: G-Biosciences
Chromogenic beta-xylosidase substrate, yielding a yellow solution upon cleavage.
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2-Naphthyl caprylate
Supplier: G-Biosciences
Chromogenic substrate for carboxylesterase and lipase. 2-naphthol is released upon hydrolyzation. By simultaneous coupling with a diazonium salt, the corresponding azo-dye is formed. Naphthols can also be detected by fluorescence analysis. Used in an colorimetric assay for the extracellular lipase of Pseudomonas fluorescens B52.
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4N6FLOQSwabs® Forensic DNA Collection for Human Identification
Supplier: Copan
DNA collection for human identification. The active drying system absorbs water molecules, preventing microbial growth and guaranteeing DNA stability for 12+ months at RT and –80 °C.
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2-Naphthyl-beta-D-galactopyranoside
Supplier: G-Biosciences
A chromogenic substrate used to detect beta-D-galactosidase activity. Upon enzymatic hydrolysis, it liberates 2-naphthol, which can be measured colorimetrically or fluorometrically. It is commonly employed in enzyme assays, microbiological testing, and biochemical research for quantifying galactosidase activity.
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4-Nitrophenyl-alpha-D-galactopyranoside
Supplier: G-Biosciences
Chromogenic substrate yielding a soluble chromophor for the colorimetric assay of alpha-D-galactosidase upon cleavage. Used for the detection of hydrolases in tissues and membranes.
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Dehydrated culture media, MP Biomedicals
Supplier: MP Biomedicals
Rich medium for the growth of E. coli and certified for plasmid and other bacterial cultures in liquid medium.
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Membrane filter funnels, CN, Microsart® @filter
Supplier: Sartorius
These filter units with PP funnel and base and cellulose nitrate membrane are developed for the detection and enumeration of microorganisms in pharmaceuticals, cosmetics, food, beverages, water and other liquids. All components of the filtration system must comply with international guidelines, such as USP, EP or ISO standards.
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4-Nitrophenyl-beta-D-galactopyranoside
Supplier: G-Biosciences
Chromogenic beta-galactosidase substrate yielding a yellow solution upon cleavage. Can be used for the detection of coli forms due to their beta-galactosidase activity.
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5-Bromo-4-chloro-3-indoxyl-alpha-D-glucopyranoside
Supplier: G-Biosciences
X-α-D-Glucoside is a white to off-white microcrystalline powder that is used as a chromogenic substrate for α-D-glucosidase, yielding a blue precipitate. It is used for the detection of Staphylococcus aureus, and the Bacillus species. It is also used in the isolation of Enterobacter sakazakii.
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4-Nitrophenyl-alpha-D-glucopyranoside
Supplier: G-Biosciences
Chromogenic substrate for alpha-D-glucosidase yielding a yellow solution upon cleavage. Also used for the detection of glucansucrases and for yeast alpha-D-glucosidase and for studies of the crystal structure of the complexes of concanavalin A.
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PMAxx™ dye 20 mM in water
Supplier: Biotium
PMAxx™ dye is a DNA modifier used for viability PCR (v-PCR). V-PCR is a powerful PCR-based, culture-independent, method for rapid and sensitive quantification of microbial viability.
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4-Methylumbelliferyl caprylate
Supplier: G-Biosciences
A fluorogenic substrate used primarily for detecting esterase and lipase activity. Upon enzymatic hydrolysis, it releases 4-methylumbelliferone (4-MU), a fluorescent compound measurable by excitation at ~365 nm and emission at ~445 nm. It is commonly used in enzyme assays, clinical diagnostics, and microbiological testing.
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3-Indoxyl-beta-D-glucuronic acid cyclohexylammonium salt
Supplier: G-Biosciences
3-Indoxyl-beta-D-glucuronic acid, cyclohexylammonium salt is a chromogenic substrate for beta-D-glucuronidase. Upon enzymatic cleavage, it releases indoxyl, which oxidises to form blue-colored indigo dye, allowing visual or spectrophotometric detection. This salt form enhances solubility and stability, making it ideal for microbiological diagnostics, enzyme assays, and clinical testing.
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Dehydrated culture media, 2xYT-broth, MP Biomedicals
Supplier: MP Biomedicals
2xYT-broth is a nutritional rich medium providing nitrogen and growth factors optimised for the growth of recombinant Escherichia coli strains infected with the M13 bacteriophage or other filamentous single stranded DNA bacteriophages thus allowing the bacteriophage to reproduce in large quantities without exhausting the host cells.
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M9 Minimal Salts (Maniatis Formulation), Powder, MP Biomedicals
Supplier: MP Biomedicals
M9 Minimal medium salts are suitable for the preparation of M9 Minimal Medium for use in propagation of E.coli and plasmid amplification.
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5-Bromo-4-chloro-3-indoxyl sulphate potassium salt
Supplier: G-Biosciences
A chromogenic substrate widely used for detecting sulfatase enzyme activity. Upon enzymatic hydrolysis by arylsulfatase, it releases 5-bromo-4-chloro-3-indoxyl, which oxidizes to form a blue-green insoluble dye. This property makes it particularly useful for histochemical staining, enzyme localisation, and diagnostic assays, especially in microbiological and biochemical research.
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