Sustratos de enzimas

Living cells of Escherichia coli can be reliably detected with media that contain a chromogenic or fluorogenic substrate for beta-glucuronidase (also termed β-D-glucuronidase), an enzyme that occurs almost exclusively in E. coli. RUG®, Resorufin-beta-D-glucuronic acid methyl ester is a highly sensitive chromogenic and fluorogenic indicator for E. coli. After removal of the methyl ester group by unspecific hydrolysis, orange colored product is cleaved by beta-glucuronidase in liquid media or on agar plates and yields an intense pink color. Red fluorescence is obtained upon excitation at 560-570 nm.Formally ER175455.

4-Nitrophenyl 3,4-O-isopropylidene-a-D-galactopyranoside is a chemiluminescent substrate for detecting beta-galactosidase activity in bacteria. This product is a high purity, high quality compound that can be used as a culture media and environmental testing agent. It has been shown to be effective in diagnostics, chromogenic substrate, and enzyme substrate reactions. 4NPPG has been shown to be a fluorogenic substrate for beta-galactosidase assay and can be used as food testing agent with conjugate.

4-Nitrophenyl 2-acetamido-3-O-acetyl-4,6-O-benzylidene-2-deoxy-aDglucopyranoside is a fluorogenic substrate that can be used for the detection of β-glucosidase activity. It is a water soluble substrate with an extinction coefficient of approximately 10,000 M−1 cm−1 at 420 nm. 4NPAABGDG is a chromogenic substrate that can be used to detect β-galactosidase activity. It has an extinction coefficient of approximately 1,700 M−1 cm−1 at 420 nm. The CAS number for 4NPAABGDG is 23262-56-8 and it is sold by Sigma Aldrich under catalog number L4959.

4-Methylumbelliferyl 3,4,6-tri-O-acetyl-b-D-galactopyranoside is a fluorescent compound that can be used as a substrate for the following enzymes: β-galactosidase, α-galactosidase, and β-glucuronidase. This product is used in diagnostics to measure the activity of these enzymes. It can also be used to detect bacteria in culture media and food testing. 4MUF3,4,6TABG is a high quality product that has been shown to have a high purity level by liquid chromatography. CAS number: 61440-03-2

Fluorogenic substrate for ?-galactosidase

A substrate for visualising alkaline phosphatase activity. It produces a purple insoluble end product that is detected visually, when used together with nitroblue tetrazolium. The substrate system is versatile and has functions in a variety of applications, including Northern, Southern, and Western blotting, in situ hybridization, ELISAs, microarray and immunohistochemistry. DMF soluble.

Fluorogenic substrate for aminopeptidase

Histamine (Scombrotoxin) fish poisoning is the most frequent cause of fish poisoning incidents today. Cymit Quimica's BCM®; Histamine-producingbacteria Broth (C-0450) is a growth medium for the detection of histamine-producing bacteria in food and water samples. The medium contains an indicator that turns orange to red due to metabolites released by histidine decarboxylase.

4-Nitrophenyl 6-O-(alpha-D-glucopyranosyl)-beta-D-glucopyranoside is a chromogenic substrate for beta-glucosidase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl 6-O-(alpha-D-glucopyranosyl)-beta-D-glucopyranoside is used in different applications such as the Cellulose metabolism research, biofuel production

2-Chloro-4-nitrophenyl b-D-cellobioside (CNPG) is a chromogenic enzyme substrate that is commonly used to detect and measure the activity of β-glucosidases. CNPG is cleaved by the enzyme into the chromogenic product, which can be detected spectrophotometrically. β-glucosidases are important enzymes in the breakdown of cellulose, and CNPG is a widely used substrate for the detection and quantification of these enzymes in various research studies.

AquaSpark™ α-D-galactoside is a dioxetane-based substrate for the luminescence detection of α-galactosidase activity. It is the first single-compound chemiluminescent substrate commercially available for the detection of α-galactosidase activity. α-galactosidase assays are used in molecular biology to monitor the transcriptional activity of the GLA gene that is correlated with metabolic diseases or gene mutations. In microbiology the α-galactosidase activity is used to detect specific bacteria such as α-galactosidase positive Salmonella strains (Salmonella Enteritidis RKI 05/07992).

6-Chloro-1H-indol-3-yl octanoate is a fluorogenic substrate that can be used to detect enzymes such as phosphatases, lipases, esterases, and proteases. 6-Chloro-1H-indol-3-yl octanoate is a ligand for metal ions such as Cu(II), Ni(II) and Zn(II). This product has high purity and quality. It is an enzyme substrate for many enzymes such as phosphatases, lipases, esterases, and proteases. This product can be used in diagnostics of various substances including food testing, environmental testing and staining. 6CIO is a chromogenic substrate that can be used to detect bioluminescence reactions. 6CIO is CAS No. 159954-35-5.

2-Nitrophenyl 2,3-di-O-acetyl-b-D-xylopyranoside is a chromogenic substrate used to assay the activity of xylosidase enzymes. It is hydrolyzed by xylosidase to yield a yellow-colored product, 2-nitrophenol, which absorbs light at 405 and 410 nm. This substrate is used in research to study the function of xylosidase enzymes and their role in various biological processes. It is also used in diagnostic tests for the detection of xylosidase activity in different microorganisms, including bacteria and fungi.

Please enquire for more information about Trimethyl phosphonoacetate including the price, delivery time and more detailed product information at the technical inquiry form on this page

4-Methylumbelliferyl b-D-mannopyranoside is a fluorescent probe that can be used to measure the activity of the enzyme β-glycosidase. It is synthesized from 4-methylumbelliferone, which reacts with b-D-mannopyranosyl chloride and pyridine, followed by glycosylation with glucal. The maximum absorption of this compound occurs at a wavelength of 400 nm in an acidic solution. The pH optimum for this compound is 5.5, so it should not be used in tissues or organs where the pH is greater than 7.4. This product has been found to have no adverse effects on animals and does not react with other enzymes, making it suitable for use as a biochemical marker for liver cells or tissues.

D-Alanine 7-amido-4-methylcoumarin trifluoroacetate salt is a chromogenic substrate for the enzyme Beta-galactosidase. It is used as a diagnostic tool in the detection of certain bacteria, such as Enterobacteriaceae and Clostridium perfringens. It can also be used to detect the presence of beta galactosidase in food products and environmental samples. D-Alanine 7-amido-4-methylcoumarin trifluoroacetate salt has an applications in chemiluminescence, bioluminescence, and fluorescence. This product is not intended for use as a drug or food additive.

Please enquire for more information about 5-Bromo-4-chloro-1-methyl-3-indolyl-β-D-glucopyranoside including the price, delivery time and more detailed product information at the technical inquiry form on this page

This product is a fluorogenic substrate that reacts with the enzyme beta-galactosidase to produce a fluorescent product. It can be used in food testing, environmental testing, and diagnostics. The CAS number for this product is 609-33-2. This product is available in high purity and high quality.