Substrats d'enzymes

<p>Sensitive fluorogenic substrate for fluorometric and UV-spectrophotometric assays of phosphatases. This may also be used for in-gel assays</p>

<p>4-Methylumbelliferyl 4-O-(alpha-L-fucopyranosyl)-beta-D-galactopyranoside is a fluorogenic substrate for alpha-L-fucosidase. After enzymatic cleaveage, free 4-methylumbelliferone (also known as hymecromone) is released, exhibiting blue fluorescence upon excitation with UV light. The strongest fluorescence of 4-methylumbelliferone requires deprotonation of the hydroxyl group (thus requires alkaline pH), with a maximal fluorescence intensity obtained with excitation at 350 to 370 nm and emission at 440 to 470 nm. The use of 4-methylumbelliferyl 4-O-(alpha-L-fucopyranosyl)-beta-D-galactopyranosideas a substrate for measuring the alpha-L-fucosidase activity is used for fucosidosis diagnosis and in screening studies of glycoprotein metabolism disorders.</p>

<p>Growth medium for the detection of histamine-producing bacteria in food and water samples. The medium contains an indicator that turns orange/red (absorbance at 555 nm) due to metabolites released by histidine decarboxylase. The BCM® Histamine-producing bacteria Broth contains tryptone (FT09555) and yeast extract, together with the chromogenic agent. High-level histamine-producing bacteria yield orange to red coloration in less than 2 days and even after 24 hours, while cultures of other bacteria remain yellow.</p>

<p>2-Chloro-4-nitrophenyl b-D-lactoside is a chromogenic enzyme substrate used to study the activity of enzymes. It produces a color when hydrolyzed, which makes it a valuable tool in screening for enzyme activity and studying enzyme kinetics.</p>

<p>4-Nitrophenyl laurate is a chromogenic substrate for lipase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl laurate is used in different applications such as the Lipase activity screening, clinical diagnostics</p>

<p>5-Bromo-4-chloro-3-indolyl a-D-maltopyranoside is a chromogenic substrate used to detect the specific enzymatic activity of alpha-glucosidase. After cleavage, 5-bromo-4-chloro-indoxyl is released, resulting in a blue to blue-green color change in bacterial colonies or media. 5-Bromo-4-chloro-3-indolyl a-D-maltopyranoside is used in Pompe disease screening and glycogen storage disorder diagnosis.</p>

<p>Aldol 458 nonanoate solution (0.75 M) is a substrate for enzymes and ligands, which is used in various applications such as food testing, staining, fluorogenic substrate, environmental testing, chromogenic substrate and conjugate. Aldol 458 nonanoate solution (0.75 M) has high purity and is highly stable at pH 2-12. This product can be used as a chemiluminescence or bioluminescence substrate. The CAS number for this product is 2484873-15-4.</p>

<p>alpha-N-Bz-L-Arg-aminoluciferin is a modified form of D-luciferin used as a luminescent enzyme substrate for protease.</p>

<p>4-Nitrophenyl 2-acetamido-4-O-(2-acetamido-2-deoxy-b-D-glucopyranosyl)-2-deoxy-a-D-galactopyranoside is an enzyme substrate that is used in the detection of phenylalanine, tyrosine, and tryptophan. It is also used for environmental testing, bioluminescence, culture media, chemiluminescence, fluorogenic substrate, food testing, diagnostics and other applications.</p>

<p>Chromogenic substrate for beta-glucanase</p>

<p>4-Methylumbelliferyl N,N',N''-triacetyl-beta-D-chitotrioside is a fluorogenic substrate for chitinase. After enzymatic cleaveage, free 4-methylumbelliferone (also known as hymecromone) is released, exhibiting blue fluorescence upon excitation with UV light. The strongest fluorescence of 4-methylumbelliferone requires deprotonation of the hydroxyl group (thus requires alkaline pH), with a maximal fluorescence intensity obtained with excitation at 350 to 370 nm and emission at 440 to 470 nm. The use of 4-methylumbelliferyl N,N',N''-triacetyl-beta-D-chitotriosideas a substrate for measuring the chitinase activity is used for fungal infection assays.</p>

<p>L-Ala-PAB-resorufin is a highly sensitive chromogenic and fluorogenic indicator for L-alanine aminopeptidase activity and related enzymes occurring in prokaryotic as well as eukaryotic organisms. After removal of the L-alanyl substructure by enzymatic hydrolysis and spontaneous elimination of the para-aminobenzyl spacer, the initially orange colored compound yields an intense pink color and red fluorescence.</p>

<p>Chromogenic β-maltosidase substrate yielding a yellow solution upon cleavage.</p>

<p>2,4-Dinitrophenyl-beta-D-glucopyranoside is a chromogenic substrate used to assay enzymes, such as glucosidases. These enzymes catalyze the hydrolysis of glycosidic bonds in sugars.</p>

<p>The 4-Methylumbelliferyl b-D-ribofuranoside is a top-notch fluorogenic substrate for glycosidase activity detection. Upon hydrolysis by enzymes, it generates a strongly fluorescent 4-methylumbelliferone molecule, enabling rapid assay results and real-time monitoring of enzymatic reactions. This product is suitable for many biological research applications, such as in vitro analysis, diagnostic testing, and drug discovery. With its high sensitivity and specificity, it delivers consistent and accurate results, making it an essential tool for scientists and researchers.</p>

<p>4-Methylumbelliferyl 2-deoxy-2-sulfamino-a-D-glucopyranoside sodium salt (M3A or MU-GlcNS) is a fluorogenic substrate of heparin sulfamidase, used in the diagnosis of Mucopolysaccharidosis III type A (MPS III A). MPS III A, also known as Sanfilippo syndrome type A, is caused by the deficiency of heparan N-sulfatase. Heparin sulfamidase in the assay desulfates MU-GlcNS to 4-methylumbelliferyl 2-amino-2-deoxy-α-D-glucopyranoside (MU-GlcNH2). To release fluorometrically measurable 4-methylumbelliferone (MU) and by-product glucosamine, MU-GlcNH2 is further hydrolysed by an enzyme such as yeast α-glucosidase during a second incubation.</p>

<p>4-Methylumbelliferyl alpha-D-glucosaminide is a fluorogenic substrate for alpha-N-acetylglucosaminidase. After enzymatic cleaveage, free 4-methylumbelliferone (also known as hymecromone) is released, exhibiting blue fluorescence upon excitation with UV light. The strongest fluorescence of 4-methylumbelliferone requires deprotonation of the hydroxyl group (thus requires alkaline pH), with a maximal fluorescence intensity obtained with excitation at 350 to 370 nm and emission at 440 to 470 nm. The use of 4-methylumbelliferyl alpha-D-glucosaminideas a substrate for measuring the alpha-N-acetylglucosaminidase activity is used for Sanfilippo syndrome B and Mucopolysaccharidosis IIIB (MPS IIIB) diagnosis.</p>

<p>L-Pro-PAB-Resorufin is a highly sensitive chromogenic and fluorogenic indicator for L-proline aminopeptidase activity and related enzymes occurring in prokaryotic as well as eukaryotic organisms. After removal of the L-proline amide substructure by enzymatic hydrolysis and spontaneous elimination of the para-amino-benzyl (PAB) spacer, the initially orange colored compound yields an intense pink color. In addition, the released chromophor is an excellent fluorophor showing red fluorescence at an emission wavelength of 580 to 600 nm when excited at 560 to 570 nm.</p>

<p>4-Methylumbelliferyl dodecanoate is a fluorogenic substrate for lipase. After enzymatic cleaveage, free 4-methylumbelliferone (also known as hymecromone) is released, exhibiting blue fluorescence upon excitation with UV light. The strongest fluorescence of 4-methylumbelliferone requires deprotonation of the hydroxyl group (thus requires alkaline pH), with a maximal fluorescence intensity obtained with excitation at 350 to 370 nm and emission at 440 to 470 nm. The use of 4-methylumbelliferyl dodecanoateas a substrate for measuring the lipase activity is used for detecting pancreatic insufficiency in diagnosis assays as well as the screening of lipase deficiency.</p>

<p>Celluchrome (short name for remazol brilliant blue carboxymethyl cellulose or RBB-CMC) is a chromogenic substrate for cellulases. With a higher sensitivity, RBB-CMC allows for the detection of the enzyme activity even when small amounts are present.</p>

<p>Green I is a nucleic acid dye that has been shown to have antioxidative properties. It inhibits protein synthesis in mammalian cells by binding to the DNA and blocking transcription. Green I has also been shown to inhibit the growth of tumor cells and to cause cell death by oxidative damage. Green I is not genotoxic, but it can cause false positive results in genotoxicity tests. Green I has also been shown to be a potential biomarker for renal cell cancer, as well as a prognostic marker for this cancer. This dye enhances polymerase chain reaction (PCR) and is used in biological research because of its ability to bind with proteins and form complexes with DNA.</p>

<p>4-Methylumbelliferyl-a-D-mannopyranoside-2-phosphoethanolamine is a fluorescent substrate used in enzyme assays. It is an analog of the natural substrate, 4-methylumbelliferyl-alpha-D-mannopyranoside, which is a phosphoethanolamine linked to alpha-D-mannose. This product can be used as a chromogenic or fluorogenic substrate for various enzymes, including beta glucosidase, beta galactosidase, and beta lactonase. 4MUMPE can also be used for bioluminescent studies and has been shown to have high purity and quality.</p>

<p>4-Nitrophenyl-alpha-D-glucopyranoside, beta-Anomer is a chromogenic sugar that can be used as an indicator for the presence of 4-nitrophenol. It is a highly reactive compound that spontaneously reacts with nitrobenzene to form a dinitroaniline. This anomeric structure is easily oxidized by air and light to form the corresponding o-dinitroaniline. When this reaction occurs, this substance changes color from yellow to red.</p>

<p>4-Methylumbelliferyl-alpha-L-rhamnopyranoside is a fluorogenic substrate for alpha-L-rhamnosidase. After enzymatic cleaveage, free 4-methylumbelliferone (also known as hymecromone) is released, exhibiting blue fluorescence upon excitation with UV light. The strongest fluorescence of 4-methylumbelliferone requires deprotonation of the hydroxyl group (thus requires alkaline pH), with a maximal fluorescence intensity obtained with excitation at 350 to 370 nm and emission at 440 to 470 nm. The use of 4-methylumbelliferyl-alpha-L-rhamnopyranosideas a substrate for measuring the alpha-L-rhamnosidase activity is used for detection of bacterial infection.</p>

<p>Sensitive fluorogenic substrate for fluorometric and UV-spectrophotometric assays of phosphatases.</p>

<p>A fluorogenic substrate for detection of enzymatic activity of the SARS-CoV-2 Mpro protease. The fluorophore 7-Amino-4-methylcoumarin (AMC) is linked to the tetrapeptide via a peptide bond at the C-terminal of the glutamine residue. Following the hydrolytic activity of the Mpro protease, the fluorogenic AMC group get released from the substrate, generating a fluorescent signal (Ex 380 nm / Em 455 nm).</p>

<p>6-Chloro-3-indoxyl nonanoate is a fluorescent substrate that is used in the detection of beta-galactosidase activity. It has been used to detect the enzyme levels in various culture media and as a high quality, food testing, and environmental testing. The product is also used as a ligand for enzyme inhibition studies. 6-Chloro-3-indoxyl nonanoate has shown to be an excellent fluoroquinolone substrate for chemiluminescence assays. This product is CAS No. 133950-72-8 and is of high purity and high quality.</p>

<p>1-Naphthyl b-D-glucuronide sodium salt is a chromogenic substrate commonly used to assay the activity of beta-glucuronidase enzymes. It is hydrolyzed by beta-glucuronidase to yield a yellow-colored product, 1-naphthol, which can be quantified spectrophotometrically. This substrate is widely used in diagnostic tests for detection of beta-glucuronidase activity, particularly in clinical microbiology for the identification of E. coli and other enteric bacteria. With its sodium salt form, it boasts increased solubility in aqueous solutions, ensuring seamless integration into various experimental settings.</p>

<p>Fluorogenic substrate for α-L-Fucosidase yielding a blue fluorescent solution upon cleavage.</p>

<p>N-alpha-CBZ-L-Arginine 7-amido-4-methylcoumarin hydrochloride is a high quality and highly purified substrate for enzymes that catalyze the release of light when they react with their specific substrates. It is used in a variety of applications, including diagnostics and food testing. NACBZLAMC hydrochloride is an excellent ligand for chemiluminescence reactions and can be used to detect the presence of various analytes. It can also be used as a staining agent to detect proteins on Western blots or to stain bacterial cultures for identification. This product has been shown to be effective against numerous bacteria, including Staphylococcus aureus and Pseudomonas aeruginosa, as well as fungi like Candida albicans.</p>

<p>Substrate for the detection of beta-D-fucosidase</p>

<p>4-Nitrophenyl 2-acetamido-2-deoxy-b-D-glucopyranoside is a chemiluminescent substrate that can be used in the detection of various enzymes. This product has been tested for sterility and purity, and it has passed all tests. It is also free of any detectable levels of heavy metals or other contaminants. 4NP2AG6S is a high quality bioluminescent substrate with CAS No. 71498-92-5. It is a fluorescent compound that reacts with an enzyme to produce light. The reaction can be detected by measuring the emitted light intensity at 680 nm (max).</p>

<p>Chromogenic substrate for beta-glucosidase</p>

<p>Fluorogenic substrate for cathepsin B or aminopeptidase III. Yields a blue fluorescent solution upon cleavage.</p>

<p>Luc-coliforms Na is a fluorogenic substrate that is used in the diagnosis of bacterial contamination. It is a conjugate of the enzyme luciferase and the substrate coelenterazine, which are combined in a buffer solution. Luc-coliforms Na is used to detect bacteria by adding it to a culture broth or other growth media. The bacteria will emit light as they break down the luc-coliforms Na and produce ATP, which can then be measured with an appropriate detector. Luc-coliforms Na can also be used as a stain for gram-negative rods, such as coliforms, e.g., Escherichia coli, Enterobacter aerogenes, Klebsiella pneumoniae, Proteus mirabilis.</p>

<p>A non-metabolizable allolactose analogue, widely used in molecular biology for overexpression of recombinant proteins from inducible systems under the control of lac promoter. IPTG binds to the LacI repressor and causes its release from the lac operator, allowing gene expression to take place. Present in vectors of pGEX, pGEM-T, pET, pRSET, pMAL class and others.</p>

<p>PAIRED PRODUCT AVAILABLE: alpha-L-iduronidase Enzyme, FI1793834MU-alpha-L-iduronide-2-sulphate (M2) is a fluorogenic substrate of iduronate-2-sulphatase (IDS), used in a 2-step assay coupled with alpha-L-iduronidase. The assay is used in biochemical testing for Hunter syndrome (mucopolysaccharidosis II / MPS II). In a first step, IDS from biological samples cleaves the sulphate group from M2. In a second step, exogeneous alpha-L-iduronidase which cleaves the 4-MU moiety is added to the reaction, resulting in release of a fluorescent signal (Ex 360 nm / Em 455 nm). The reaction is stopped by the addition of sodium carbonate.</p>

<p>Resorufin N-acetyl-b-D-glucosamine is fluorogenic substrate for N-acetyl-beta-D-glucosaminidase (NAG).</p>

<p>Chromogenic α-maltosidase substrate yielding a yellow solution upon cleavage.</p>

<p>Phosphatase substrate</p>

<p>Chromogenic substrate for β-D-galactosidase, yielding a blue precipitate upon cleavage.</p>

<p>2-O-(4-Nitrophenyl)-alpha-D-N-acetylneuraminic acid sodium salt is a chromogenic substrate used to detect the enzymatic activity of neuraminidase or sialidase. After cleavage, the nitrophenyl moiety is released exhibiting a light yellowish color. 2-O-(4-Nitrophenyl)-alpha-D-N-acetylneuraminic acid sodium salt is used in bacterial neuraminidase activity assays.</p>

<p>4-Methylumbelliferyl 2-deoxy-2-sulfamino-beta-D-glucopyranoside sodium salt is a fluorogenic substrate for N-sulfoglucosamine sulfohydrolase. After enzymatic cleaveage, free 4-methylumbelliferone (also known as hymecromone) is released, exhibiting blue fluorescence upon excitation with UV light. The strongest fluorescence of 4-methylumbelliferone requires deprotonation of the hydroxyl group (thus requires alkaline pH), with a maximal fluorescence intensity obtained with excitation at 350 to 370 nm and emission at 440 to 470 nm. The use of 4-methylumbelliferyl 2-deoxy-2-sulfamino-beta-D-glucopyranoside sodium saltas a substrate for measuring the N-sulfoglucosamine sulfohydrolase activity is used for screening of Mucopolysaccharidosis IIIA (MPS IIIA) and diagnosis of Sanfilippo A syndrome.</p>

<p>Aldol® 484 alpha-D-glucopyranoside is a chromogenic and fluorogenic enzyme substrate for alpha-glucosidase activity (EC 3.2.1.20, alpha-1,4-glucosidase, also known as maltase). The colorless enzyme substrate is cleaved by bacteria producing this enzyme in liquid or solid media, yielding orange color. Green fluorescence is also generated if a suitable matrix is present such as: cellulose acetate filters, polypropylene tubes or microplates and polyethylene vials. Aldol® 484 alpha-D-glucopyranoside can be used under aerobic and anaerobic conditions.</p>

<p>Chromogenic substrate for fucosyltransferases</p>

<p>Chromogenic substrate for beta-galactofuranosidase</p>

<p>4-Methylumbelliferyl alpha-D-mannopyranoside (4-MU-a-D-Man) is a fluorogenic substrate used in activity assays for alpha-mannosidase. When it is hydrolyzed by alpha-mannosidase, it produces a fluorescent compound, 4-methylumbelliferone (4-MU). 4-MU-a-D-Man is often used in medical research to monitor the activity of alpha-mannosidase, which is important in lysosomal storage diseases.  In addition, 4-Methylumbelliferyl alpha-D-mannopyranoside has been used to study the the activity of concanavalin A, a lectin that specifically binds to alpha-D-mannopyranosyl and alpha-D-glucopyranosyl residues on various glycoproteins. The use of this fluorogenic enzyme substrate permits study the degree of alpha-D-mannosidic linkage cleavage by the enzyme.</p>

<p>4-Methylumbelliferyl 3-O-(N-acetylneuraminyl)-b-D-glucopyranoside is a chromogenic substrate. It is used for the detection of glycoproteins and glycolipids in food testing, staining, environmental testing, and diagnostics. It can also be used as a fluorogenic substrate for the detection of glycoproteins and glycolipids in fluorescence microscopy. 4-methylumbelliferyl 3-O-(N-acetylneuraminyl)-b-D-glucopyranoside has been shown to be a ligand for the lectin receptor Galectin 9, which is involved in inflammation and cancer cell growth. 4-methylumbelliferyl 3-O-(N-acetylneuraminyl)-b-D-glucopyranoside has been shown to be an enzyme substrate for alkaline phosphatase, β</p>

<p>Fluorogenic substrate for esterase yielding a blue fluorescent solution upon cleavage.</p>

<p>4-Nitrophenyl beta-D-xylobioside is a chromogenic substrate for xylanase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl beta-D-xylobioside is used in different applications such as the Xylan degradation studies, paper/pulp industry applications</p>

<p>Chromogenic substrate targeting alpha-L-arabinofuranosidase</p>

<p>Aldol® 484 acetate is a chromogenic substrate for carboxylesterases yielding a red precipitate. In contrast to classical indoxyl substrates, Aldol® substrates can be used under aerobic and anaerobic conditions.</p>

<p>5-Bromo-4-chloro-3-indolyl β-L-fucopyranoside (X-Fuc) is a chromogenic substrate specifically designed for the identification and detection of fucosidase enzyme activity. Upon cleavage by fucosidase, it generates a blue-colored 5-Bromo-4-chloro-3-hydroxy-indole precipitate, which can be easily observed under a microscope or spectrophotometer. This feature makes X-Fuc an invaluable tool across various applications, such as biochemical analysis, histochemical staining, cell biology, and enzyme kinetic assays. By providing a fast, sensitive, and reliable readout for fucosidase activity, 5-Bromo-4-chloro-3-indolyl β-L-fucopyranoside facilitates essential research in the understanding of biological processes and the development of therapeutic interventions.</p>

<p>6-Chloro-3-indolyl b-D-cellobioside is a chromogenic substrate that produces a salmon-pink color after enzymatic cleavage. It is used for detecting the activity of beta-D-cellobiosidase in enzyme assays.</p>

<p>Dehydroluciferin is a bioluminescence probe that is a potent inhibitor of the firefly luciferase reaction. It is a byproduct of the oxidation of luciferin, the substrate for firefly luciferase, which catalyzes the bioluminescence reaction. It can also form during the synthesis or storage of luciferin. Its presence can potentially lead to issues in bioluminescent assays.</p>

<p>2-(N-Hexadecanoylamino)-4-nitrophenylphosphocholine hydroxide, often abbreviated as HDA-PC, is a chromogenic substrate for acid sphingomyelinase enzyme. HDA-PC is used as a key substrate for measuring the activity of this enzyme, responsible for catalyzing the hydrolysis of sphingomyelin to ceramide. The activity assay for this measuring this enzyme's acitivy is to detect a deficiency (or lack) of the enzyme which is directly related to the Niemann-Pick disease.</p>

<p>Luc-S.aureus K is a fluoro-ligand that is used as a diagnostic to detect and quantify the activity of S.aureus in any given sample. It is a detection substrate for the enzyme β-galactosidase, which catalyzes the hydrolysis of the luciferin. When luciferin is cleaved by β-galactosidase, it emits light that can be detected using a luminometer to measure the amount of light produced and calculate the quantity of bacteria present in the sample. Luc-S.aureus K has been approved for use as a detector for bioluminescence in food testing, environmental testing, and other diagnostic applications.</p>

<p>Substrate for a-L-arabinopyranosidase</p>

<p>4-Nitrophenyl a-D-mannopyranoside is a chromogenic pNP enzyme substrate that enables the detection and quantification of a-D-mannosidase activity in various biological samples through a colorimetric assay. The hydrolysis of the substrate by the enzyme releases 4-nitrophenol, a yellow compound whose absorption can be measured spectrophotometrically. Applications for this substrate span biomedical research, disease diagnostics, and industrial enzyme production.</p>

<p>Chromogenic substrate for beta-glucuronidase</p>

<p>Beta-naphthyl stearate is a chromogenic substrate for measuring enzymatic activity.</p>

<p>L-Histidine 7-amido-4-methylcoumarin hydrochloride is a synthetic peptide substrate used as a fluorogenic substrate for histidine aminopeptidase.</p>

<p>Aldol® 518 alpha-D-galactopyranoside is a chromogenic and fluorogenic enzyme substrate used for detection of alpha-galactosidase activity. The enzyme substrate is cleaved by alpha-galactosidase positive bacteria and yeasts in liquid or solid media, yielding red color and red fluorescence signal. Aldol® 518 alpha-D-galactopyranoside can also be used to detect alpha-galactosidase (encoded by the Mel1 gene) in yeast gene reporter assays or for identification of alpha-gal positive transformants on agar plates. Aldol® 518 alpha-D-galactopyranoside can be used under aerobic and anaerobic conditions.</p>

<p>2-Chloro-4-nitrophenyl a-D-maltotrioside (2CNP) is a potent hypoglycemic agent that has been shown to decrease postprandial blood glucose levels in humans. 2CNP is a white crystalline solid that is soluble in water and ethanol. The transfer reactions of 2CNP are enhanced by benzalkonium chloride, which forms an organic complex with the drug. The optimum concentration for the hypoglycemic effect of 2CNP is determined to be 10 μM, which can be detected using an optical sensor. This compound also inhibits α-amylase and other enzymes involved in carbohydrate metabolism, leading to the accumulation of glycogen and lowering the blood glucose level.</p>

<p>5-Bromo-4-chloro-3-indolyl-D-thymidine-3'-phosphate cyclohexylammonium salt is a chromogenic substrate used to detect the specific enzymatic activity of alkaline phosphatase. After cleavage, 5-bromo-4-chloro-indoxyl is released, resulting in a blue to blue-green color change in bacterial colonies or media. 5-Bromo-4-chloro-3-indolyl-D-thymidine-3'-phosphate cyclohexylammonium salt is used in immunohistochemistry (IHC) and Western blot detection, immunoassays used to detect proteins.</p>

<p>1-Naphthyl beta-D-glucuronide (NPG) is a chromogenic enzyme substrate used to detect the presence of β-glucuronidase activity. Upon hydrolysis by the enzyme, it produces a yellow product that can be detected by spectrophotometry or visually. It is commonly used in clinical assays to detect the presence of the enzyme in urine samples, as elevated levels can indicate liver or urinary tract diseases. It is also utilized in environmental testing, as some bacteria strains can produce the enzyme as a by-product, making NPG a useful tool for detecting these strains in contaminated water or food sources.</p>

<p>Luc-Salmonella is a conjugate of the enzyme luciferase and the substrate 5-bromo-4-chloro-3-indolyl phosphate. Luc-Salmonella has been used for diagnostic purposes in the detection of bacteria in culture media, as well as in environmental and food testing. Luc-Salmonella can be used to detect Salmonella, which is a bacterium that can cause gastrointestinal disease. Luminescence is measured using a luminometer or fluorimeter with an excitation wavelength of 485 nm and emission wavelengths at 510 nm. Luminescence from Luc-Salmonella is typically measured after 1 hour incubation with bacterial cells.<br>Luc-Salmonella has been shown to have high purity and quality due to its unique composition of enzyme substrate. This product has been tested for contamination by sensitive assays such as chemiluminescence, bioluminescence, or fluorescence. The purity level of Luc-Sal</p>

<p>4-Methylumbelliferyl-alpha-L-rhamnopyranoside is a fluorogenic substrate used in enzyme assays. It is a substrate of the enzyme beta-galactosidase, which catalyzes the hydrolysis of terminal galactose residues from polysaccharides and glycoproteins. The fluorescent product 4-methylumbelliferone (4MU) is formed by cleavage of the terminal galactose residue and can be measured spectrophotometrically at 360 nm. 4-Methylumbelliferone has been used for chemiluminescent detection in immunoassays and as a substrate for bioluminescence reactions.</p>

<p>3-Acetylumbelliferyl beta-D-glucopyranoside is a fluorogenic enzyme substrate for beta-galactosidase-6-phosphatase. It is used in in diagnostic assays such as Gaucher disease.</p>

<p>Fluorogenic substrate for beta-glucuronidase GUS</p>

<p>Aldol® 518 myo-inositol-1-phosphate is a chromogenic and fluorogenic enzyme substrate used for detection of phosphatidyl-inositol specific phospholipase C activity (PI-PLC, EC 4.6.1.13). The colorless enzyme substrate is cleaved by PI-PLC or PI-PLC-positive microorganisms grown in liquid or solid media, yielding an intense red coloration. In combination with Aldol® 355 fluorescence enhancer, red fluorescence can also obtained. Aldol® 518 myo-inositol-1-phosphate is suitable for use in liquid and solid media, under aerobic as well as anaerobic conditions.</p>

<p>Fluorescein-dipalmitoylphosphatidylethanolamine triethylammonium salt is a fluorescent phospholipid derivative for phospholipase. This substrate consists of a fluorescein conjugated to DPPE (dipalmitoylphosphatidylethanolamine), a key component of biological membranes. This compound is frequently used in membrane dynamics studies and lipid metabolism research. The fluorescein moiety allows visualization of lipid interactions in model membranes, liposomes, or live-cell imaging applications. The triethylammonium salt form enhances solubility and stability, property that facilitates its use in aqueous and lipid-based environments.</p>

<p>1-Naphthyl b-D-galactopyranoside is a chromogenic substrate used to detect the presence of beta-galactosidase enzymes. The enzyme cleaves the substrate to produce a colored product that can be quantified and visualized. This substrate is commonly used in applications such as the detection of lacZ gene expression in bacterial colonies or in histochemical staining of tissues to identify beta-galactosidase activity.</p>

<p>4-Nitrophenyl sulfate potassium salt is a chromogenic substrate for arylsulfatase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl sulfate potassium salt is used in different applications such as the Metachromatic leukodystrophy diagnosis, sulfatase activity assays</p>

<p>3-Indolyl 2-acetamido-2-deoxy-b-D-glucopyranoside is a substrate used for the detection of the enzyme N-acetylglucosaminidase (NAG). The enzyme hydrolyzes the NAG conjugate, releasing indole that can be detected through a colorimetric assay. This method is commonly used in clinical chemistry to evaluate kidney function, as NAG is excreted in urine and increased levels may indicate renal injury or disease. The indole NAG assay is also used in microbiology to detect the presence of NAG-producing bacteria.</p>

<p>Bioluminescent substrate for cypridina luciferase</p>

<p>Reducing co-substrate for heme peroxidases; test reagent in microbiology</p>

<p>N-Methylindoxyl-beta-D-galactopyranoside monohydrate (MG) is a chromogenic probe that interacts with galactose residues found on glycoproteins, which are found on cell surfaces, leading to activation of cells. MG also binds specifically to the surface of lung cells and can inhibit the development of certain types of infections..</p>

<p>Aldol® 515 4-acetoxybutyrate solution, 0.75 M in DMSO, is a chromogenic substrate that can be used to measure the activity of aldolase. It is a liquid at room temperature and has a pH of 7.2. The Aldol® 515 4-acetoxybutyrate solution, 0.75 M in DMSO, is soluble in water and organic solvents such as DMSO and ethanol. This product does not contain any preservatives or additives and is suitable for use with humans and animals. Aldol® 515 4-acetoxybutyrate solution, 0.75 M in DMSO, is manufactured by Cymit Quimica under patents EP 2427431 and US 8940909.br&gt;br&gt;<br>Aldolase catalyzes the conversion of dihydroxyacetone phosphate (DHAP) to glyceraldehyde 3-phosphate</p>

<p>6-Chloro-4-(trifluoromethyl)umbelliferyl b-D-cellotrioside is a fluorogenic substrate for cellulases and beta-glucosidases. After hydrolisis, the fluorophore TFMU is released generating a blue fluorescence.</p>

<p>1-Naphthyl β-D-mannopyranoside is a chromogenic (also fluorogenic) substrate. After cleavage, 1-naphthol is released and is used to quantify beta-mannosidase activity.</p>

<p>Resorufin b-D-cellobioside is a fluorogenic substrate for measurement of cellulase activity. The product of enzyme reaction, resorufin, exhibits fluorescence emission at 585 nm with excitation at 571 nm at or near physiological pH values.</p>

<p>4-Nitrophenyl-N-acetyl-α-D-glucosaminide is a chromogenic substrate for N-acetyl-β-D-glucosaminidase yielding a yellow solution upon cleavage.</p>

<p>L-Luciferin is an enzyme substrate that is used in the detection of bioluminescence. It is a fluorogenic substrate that can be used to detect the presence of glucose in urine. L-Luciferin is also a chemiluminescent substrate that can be used to detect ATP, which is required for cell metabolism. L-Luciferin has been shown to be stable at pH levels ranging from 2.5 to 9 and can be stored for up to 3 years when stored at 4°C with no light or oxygen exposure. This product has CAS No. 754978-59-1, indicating high purity and quality. L-Luciferin will not stain or react with other compounds, making it highly suitable for use as a conjugate in diagnostic tests or as a ligand in fluorescent staining reactions.</p>

<p>Chromogenic β-glucosidase substrate yielding a yellow solution upon cleavage.</p>