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<p>Naphthol AS-D is a diagnostic chemical for phosphatase enzymes and is used to stain cells, tissues, and body fluids for diagnosis. The chemical reacts with the amino groups of proteins in cells and produces a brown color. Naphthol AS-D is not toxic to living cells in concentrations below 5%. It stains basophilic leukemia cells as well as brain cells. This chemical can be used to diagnose cutaneous lesions, such as psoriasis or melanoma, which are difficult to diagnose by standard methods.  present in these lesions and produce a brown color.</p>

<p>2-Nitrophenyl-beta-D-galactopyranoside is a non-animal origin chromogenic substrate for the detection of beta-galactosidase activity. It is used in food testing, diagnostics, and environmental testing. 2-Nitrophenyl-beta-D-galactopyranoside is also used as a ligand in enzyme assays and a fluorogenic substrate for chemiluminescent reactions. This product is conjugated to HRP.</p>

<p>2-Naphthyl beta-D-galactopyranoside is a glycoside that is found in the flowers of the plant Eschscholzia californica. It is used as a localizer for bacterial strains and can be hydrolyzed by enzymes to release naphthalene. 2-Naphthyl beta-D-galactopyranoside has been shown to inhibit the growth of corynebacterium and diazonium salt, which may be due to its ability to bind to DNA and disrupt protein synthesis. The potential use of this molecule is for its insolubility, which prevents it from being absorbed by skin cells.</p>

<p>Chromogenic substrate for α-glucosidase yielding a salmon-colored precipitate.</p>

<p>4-Nitrophenyl 6-O-(b-D-galactopyranosyl)-b-D-galactopyranoside is a fluorescent substrate that is used in diagnostics and culture media. It can be used to detect the presence of aminoglycoside antibiotics, such as gentamicin, by using the fluorogenic or chromogenic reaction. 4NP6BG has been shown to bind to the beta subunit of RNA polymerase and inhibit transcription, which can be useful for testing environmental samples for the presence of aminoglycosides.</p>

<p>Ostazin Brilliant Red H-3B Galactomannan is a chemiluminescent substrate used for the detection of β-1,4-galactomannans. It reacts with the glucose residues on the mannan backbone to produce a red fluorescent product. This product can be detected by spectrophotometry at an excitation wavelength of 395 nm and emission wavelength of 510 nm. The Ostazin Brilliant Red H-3B Galactomannan substrate is useful in detecting Staphylococcus aureus, Streptococcus pyogenes, Streptococcus pneumoniae, Group A streptococci, Group B streptococci, Group D streptococci, Group G streptococci, and Group C streptococci.</p>

<p>5-Bromo-4-Chloro-3-Indoxyl-N-Acetyl-Beta-D-Galactosaminide is a chromogenic substrate for detecting beta-galactosidase and GalNAc-transferase enzymes. Upon hydrolysis by the enzyme, it produces a blue-green colored compound that can be detected visually or measured spectrophotometrically. This substrate is useful in characterizing the activity of Beta-Galactosidase and GalNAc-transferase enzymes involved in glycobiology research and diagnostic applications.</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>Chromogenic substrate for β-D-glucuronidase (GUS) yielding a magenta precipitate. It is used fordetection of GUS+ bacterial colonies as analternative to 5-bromo-4-chloro-3-indoxyl-β-D-glucuronide (X-GlcA).</p>

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

<p>2-Nitrophenyl b-D-arabinopyranoside is a chemical compound that is used in the detection of ATP by chemiluminescence. It acts as a substrate for enzymes such as luciferase and catalase, which catalyze the oxidation of 2-nitrophenyl b-D-arabinopyranoside to phenol and carbon dioxide with the release of light. This reaction can be used in diagnostic applications such as detecting bacteria in culture media or diagnosing food spoilage. 2-Nitrophenyl b-D-arabinopyranoside can also be used as a conjugate to detect proteins or nucleic acids by fluorescence spectroscopy. The CAS number for this compound is 107772-06-1.</p>

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

<p>3-Nitrophenyl alpha-D-galactopyranoside is a chromogenic substrate to measure the activity of the alpha-galactosidase enzymes. Upon hydrolysis by galactosidase, 3NPG releases a yellowish product, 3-nitrophenol, which can be easily measured spectrophotometrically. Some of the applications include enzyme assays, screening for alpha-galactosidase-producing microorganisms, and studying the kinetics and inhibition of alpha-galactosidase enzymes.</p>

<p>Aldol 515 caprylate hydrochloride is a high-quality fluorogenic substrate that is used for the detection of enzymes in culture media and enzyme substrates. The product has a CAS number of 2484873-14-3 and can be used for food testing, diagnostics, and environmental testing. Aldol 515 caprylate hydrochloride can also be used as a ligand or chromogenic substrate to measure bioluminescence.</p>

<p>6-Chloro-3-indoxyl-beta-D-glucuronic acid methyl ester is a chromogenic substrate that can be used for the detection of indoxyl glucuronide in urine and other biological fluids. 6-Chloro-3-indoxyl-beta-D-glucuronic acid methyl ester is a white or light yellow crystalline solid that is soluble in water. It has a melting point of about 80°C and is stable at pH levels ranging from 2 to 12. The CAS number for this compound is 13982-87-6.</p>

<p>Aldol® 470 nonanoate is a chemiluminescent substrate that can be used as a ligand for the detection of C8/C9-esterases, lipases activity, to result in an orange/green color. Aldol® 470 nonanoate has been shown to be active with horseradish peroxidase in a number of different assay systems. The purity and quality of Aldol® 470 nonanoate has been tested with culture media, environmental testing, bioluminescence, staining, fluorogenic substrate, chromogenic substrate, enzyme substrate, food testing and conjugates.</p>

<p>Chromogenic substrate for β-D-fucosidase yielding a blue precipitate.</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>Please enquire for more information about 3,4-Cyclohexenoesculetine-N-acetyl-glucosamine including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Aldol® 484 alpha-D-glucopyranoside is a chromogenic and fluorogenic enzyme substrate for ?-glucosidase activity (EC 3.2.1.20, ?-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 beta-galactosidase</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>1-Naphthyl β-D-glucopyranoside can be used as a chromogenic substrate for beta-glucosidases. It can also be used as a fluorogenic substrate to study carbohydrate metabolism and in screening enzyme inhitibitors in pharmacologic research.</p>

<p>5-Bromo-6-chloro-3-indoxyl-beta-D-galactopyranoside is a chromogenic substrate for beta-D-galactosidase, yielding a magenta precipitate and contained in a chromogenic culture media. It is an indolyl carbohydrate that is the alpha-D-mannoside of indoxyl, in which the indole moiety is substituted at positions 4 and 5 by chlorine and bromine, respectively.</p>

<p>5-Bromo-4-chloro-3-indolyl acetate (5BCIA) is an enzyme substrate that has been shown to inhibit the activity of a number of enzymes, such as proteases and phosphatases. It has also been shown to inhibit the growth of a number of human pathogens, including Staphylococcus aureus, Escherichia coli, Salmonella enterica, Pseudomonas aeruginosa, and Mycobacterium tuberculosis. 5BCIA inhibits bacterial growth by binding to the active site of the enzyme phosphatase and preventing it from hydrolyzing a phosphate group from ATP. This process is necessary for energy metabolism in all living cells. 5BCIA has been shown to be effective against methicillin resistant Staphylococcus aureus (MRSA).</p>

<p>Chromogenic substrate for N-Acetyl-β-D-galactosaminidase yielding a salmon-colored precipitate.</p>

<p>Aldol® 515 L-alanine amide is a chromogenic and fluorogenic enzyme substrate used for detection of L-alanine aminopeptidase activity. The colorless enzyme substrate is cleaved by L-alanine aminopeptidase produced by microorganisms, grown in liquid or solid media yielding red color. In addition, red fluorescence is generated when a fluorescence enhancer or a suitable matrix is present. Aldol® 515 L-alanine amide can be used under aerobic and anaerobic conditions.</p>

<p>Naphthol AS-BI sulphate potassium salt is a modified naphtol AS substrate used for alkaline and acid phosphatase.</p>

<p>5-Bromo-4-chloro-3-indolyl nonanoate is a fluorogenic substrate that is used in the detection of enzymes. The substrate reacts with various enzymes and produces a fluorescent product, which can be detected using a fluorimeter or luminometer. It has been shown to be active against β-galactosidase, α-chymotrypsin, and β-glucuronidase. This compound may also be used as an enzyme substrate for the detection of bacteria in culture media or for food testing. 5-Bromo-4-chloro-3 indolyl nonanoate is not mutagenic or genotoxic when tested on bacterial cells.</p>

<p>4-Nitrophenyl myristate (NphOMy) is a chromogenic enzyme substrate used as a diagnosis tool for detection of β-lactamase hydrolysis activities. In the presence of certain drugs, 4-nitrophenyl myristate HSA-Tyr411-catalyzed hydrolysis seems to be inhibited.</p>

<p>Naphthol AS-OL is a widely used chromogenic enzyme substrate that forms a colored product upon reaction with specific enzymes. It is commonly employed in histochemical and cytochemical staining techniques to visualize enzyme activity in cells and tissues. Naphthol AS-OL is particularly useful for detecting the presence of enzymes such as alkaline phosphatase, acid phosphatase, and esterases. The resulting colored product can be easily observed under a microscope, allowing researchers to study the distribution and localization of these enzymes in various biological samples.</p>

<p>4-Nitrophenyl beta-D-cellotrioside is a chromogenic substrate for cellulase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl beta-D-cellotrioside is used in different applications such as the Biomass conversion research, paper industry applications</p>

<p>Chromogenic substrate for neuraminidase yielding a blue precipitate upon cleavage.</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>Chitin azure is a chromogenic substrate for chitinases. It is one of the few specific substrates for this enzyme that produces chito-oligosaccharides from chitin.</p>

<p>5-Bromo-4-chloro-1-methyl-3-indolyl-α-D-glucopyranoside is a fluorescent substrate used for the detection of α-glucuronidase.</p>

<p>5-Amino-3-indoxyl-beta-D-galactopyranoside (AIG) is a chromogenic substrate that is used for the detection of beta-galactosidase activity. AIG is also used in food testing, diagnostics, and environmental testing. The detection of beta-galactosidase activity can be done by either using the fluorogenic substrate 4-methylumbelliferyl galactopyranoside or the bioluminescence system of firefly luciferase and luciferin. This product has a CAS number of 110114-03-0 and a molecular weight of 417.5 g/mol.</p>

<p>Aldol® 455 beta-D-galactopyranoside is a chromogenic substrate for the enzyme β-galactosidase. It is used to detect the activity of β-galactosidase in cell culture, and has been shown to be highly purified and of high quality. This product can be used as a ligand for receptor binding studies or as an agent in enzyme substrates in fluorescence and chemiluminescence reactions.</p>

<p>5-Bromo-4-chloro-3-indolyl a-L-rhamnoside is a chromogenic substrate used to detect the specific enzymatic activity of alpha-L-rhamnosidase. 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-L-rhamnoside is used in bacterial rhamnose metabolism studies (e.g. E. coli).</p>

<p>2-Chloro-4-nitrophenyl b-D-maltoside is a fluorescent substrate used in diagnostic kits. It is used to detect the presence of beta-glucuronidase enzymes, which are found in many bacteria and fungi. 2-Chloro-4-nitrophenyl b-D-maltoside has been shown to be a superior substrate for beta-glucuronidase as it can be used at lower concentrations and is more stable than other substrates. The enzyme hydrolyzes the 2,4 nitrophenyl ester bond and releases the fluorogenic product 4-(2'-hydroxyethyl)benzene diazonium chloride (HED). This product emits light under ultraviolet light, making it ideal for use in Bioluminescence Assays.</p>

<p>Aldol® 470 butyrate, a chromogenic substrate manufactured by Cymit Quimica and used for enzymatic assays that produces a yellow-orange color upon enzymatic cleavage.</p>

<p>Substrate for determining hydrolytic activity of chitinase</p>

<p>4-Nitrophenyl-N-acetyl-beta-D-galactosaminide is a synthetic substrate that is used in enzyme kinetics. It is a beta-galactosidase substrate that reacts with the enzyme to form a product. The rate of reaction can be measured by following the change in absorbance over time. This product will react with an acceptor, such as chondroitin sulfate, to produce an observable reaction product. 4NPBGA has been shown to be an effective carbon source for plant physiology studies and has been shown to have optimal activity at pH 6.5.</p>

<p>Chromogenic substrate for α-galactosidase yielding a blue precipitate. Used for species differentiation within the family Enterobacteriaceae and differentiation of Bifido bacteria species from Lactobacillus species.</p>

<p>​Aldol® 455 alpha-D-maltopyranoside is a chromogenic substrate developed by Cymit Quimica, designed for the detection of maltosidases.</p>

<p>2-Nitrophenyl a-D-glucopyranoside is a chromogenic substrate commonly used to assay the activity of glucosidases. Upon cleavage of the glycosidic bond by glucosidases, the released 2-nitrophenyl group yields a yellow color detectable by spectrophotometry. This substrate has high sensitivity and is widely used in a variety of applications, including drug discovery and enzyme kinetics studies.</p>

<p>4-Nitrophenyl 2-acetamido-6-O-(2-acetamido-2-deoxy-b-D-glucopyranosyl)-3-O-(b-D-galactopyranosyl)-2-deoxy-a-D-galactopyranoside is a specific chromogenic substrate designed for the highly sensitive and accurate detection of glycosidase enzyme activity. Glycosidases are responsible for the cleavage of glycosidic bonds between saccharide units in various carbohydrates. The hydrolysis of this substrate by glycosidase enzymes produces 4-nitrophenol, a yellow-colored compound that can be easily monitored through spectrophotometric measurements due to its strong absorbance at 405 nm. This chromogenic substrate is widely used in the analysis of glycosidase activity in various biological samples, including bacterial, fungal, and plant tissues, as well as in environmental samples and biotechnological applications.</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>Chromogenic substrate for alpha-L-fucosidase</p>

<p>5-Bromo-4-chloro-3-indoxyl oleate is a chromogenic substrate used to detect the specific enzymatic activity of lipase. 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-indoxyl oleate is used in lipid metabolism disorder screening.</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>2-Chloro-4-nitrophenyl beta-D-maltotrioside, often abbreviated as CNP-G3, is a chromogenic substrate to detect and mesaure alpha-amylase activity. Evaluation and monitoring of alpha-amylase activity is important to help diagnose certain diseases such as pancreatitis.</p>

<p>Chromogenic substrate for α-galactosidase yielding a salmon-colored precipitate.</p>

<p>6-Nitro-3-indolyl-b-D-galactopyranoside is a chemiluminescent substrate that reacts with horseradish peroxidase to produce light. 6NIGP is used in the diagnostic field as a fluorogenic or chromogenic substrate for enzymes such as alkaline phosphatase, and as a staining agent for cells, tissues, and other biological materials. 6NIGP has been used in the detection of bacteria, fungi, parasites, and viruses. It is also used in food testing as an enzyme substrate. 6NIGP is purified by recrystallization from water or acetone and can be stored at −20°C.</p>

<p>5-Bromo-4-chloro-3-indoxyl-alpha-D-N-acetylneuraminic acid, cyclohexylammonium salt is a chemiluminescent substrate that provides a significant increase in light emission. It has a CAS number of 59820-92-0 and is supplied in high purity and high quality. This product is used for the detection of various biological reactions, including diagnostics, enzyme substrates, food testing, and more.</p>

<p>Aldol® 495 inositol-phosphate is a chromogenic and fluorogenic enzyme substrate used for detection of phosphatidylinositol 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 in liquid or solid media, yielding orange color. In addition, green fluorescence is generated when a suitable matrix is present, e.g. PE-Pellets or cellulose acetate filter. Aldol® 495 inositol-phosphate is suitable for use in liquid and solid media, under aerobic as well as anaerobic conditions.</p>

<p>Aldol® 470 choline phosphate is a chromogenic and fluorogenic enzyme substrate used for detection of phosphatidyl-choline specific phospholipase C (PC-PLC, EC 3.1.4.3) activity. The colorless product is cleaved by PC-PLC positive microorganisms in liquid or solid media, yielding a yellow color and green fluorescence. Aldol® 470 choline phosphate therefore, enables the detection and identification of PC-PLC positive pathogenic bacteria, such as, Clostridium perfringens, Pseudomonas aeruginosa, Helicobacter pylori, Legionella pneumophila, Bacillus cereus, Bacillus anthracis, Listeria monocytogenes, and others. Aldol® 470 choline phosphate can be used under aerobic and anaerobic conditions.</p>

<p>6-Chloro-3-indoxyl butyrate is a chemiluminescent substrate that is used in diagnostics and research. It has been shown to be an excellent ligand for the detection of DNA and protein. 6-Chloro-3-indoxyl butyrate can also be used as a chromogenic substrate for the detection of alkaline phosphatase, acid phosphatase, or beta-galactosidase. This product is also used in food testing, enzyme substrates, and fluorogenic substrates.</p>

<p>4-Nitrophenyl beta-L-arabinopyranoside is a chromogenic substrate for beta-L-arabinosidase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl beta-L-arabinopyranoside is used in different applications such as the Bacterial arabinan degradation assays, gut microbiome analysis</p>

<p>Aldol® 458 phosphate is a chromogenic and fluorogenic enzyme substrate used for detection of phosphatase activity. The colorless enzyme substrate is cleaved by phosphatases secreted by bacteria grown in liquid media, yielding yellow color and green fluorescence. Aldol® 458 phosphate can also be used in assays involving phosphatase-coupled antibodies in immunoassay applications (ELISA). Aldol® 458 phosphate can be used under aerobic and anaerobic conditions.</p>

<p>Please enquire for more information about 5-Bromo-3-indoxyl myo-inositol-1-phosphate, ammonium salt including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>4-Nitrophenyl beta-rutinoside is a chromogenic substrate for beta-glucosidase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl beta-rutinoside is used in different applications such as the Flavonoid glycoside hydrolysis, food industry applications</p>

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

<p>3-Indoxyl sulfate, potassium salt (3ISK) is a chemical compound that is soluble in water. It has been used as a marker for bowel disease, and it has been shown to react with analytical methods such as titration calorimetry and lc-ms/ms. 3ISK can be used to determine the optimum concentration for pharmacological treatment of bowel disease. The metabolic fate of 3ISK has been studied extensively and it is found that 3ISK is metabolized by microbial enzymes in the gut, which may lead to an increased incidence of bowel disease in patients with low levels of microbial metabolism. 3ISK also plays an important physiological function by maintaining mitochondrial membrane potential, which could have implications for pharmacological treatment of bowel disease.</p>

<p>Chromogenic substrate for α-mannosidase yielding a salmon colored precipitate upon cleavage.</p>

<p>Aldol® 518 beta-D-glucopyranoside is a chromogenic and fluorogenic enzyme substrate used for detection of beta-glucosidase activity. The colorless enzyme substrate is cleaved by beta-glucosidase-producing bacteria in liquid or solid media, yielding intense red color and red fluorescence. Aldol® 518 beta-D-glucopyranoside can be used under aerobic and anaerobic conditions.</p>

<p>6-Chloro-3-indoxyl-beta-D-glucuronic acid (cyclohexylammonium salt) is a chromogenic substrate for beta-glucuronidase yielding a salmon colored precipitate upon cleavage.</p>

<p>Chromogenic α-mannosidase substrate yielding a absorbent solution upon cleavage. Also used for studies of the crystal structure of the complexes of concanavalin A and binding studies with concanavalin A.</p>

<p>Substrate for horseradish peroxidase</p>

<p>Aldol® 518 acetate is a fluorogenic substrate for the enzyme aldolase. It is used in diagnostic kits for detecting aldolase in blood and other body fluids, and as an indicator of liver function. Aldol® 518 acetate can be used to detect the presence of aldolase in foods and beverages. The compound has also been shown to be an excellent substrate for bioluminescence and chemiluminescence reactions, which are widely used in research laboratories.</p>

<p>Aldol 470 phosphate is a chromogenic substrate for phosphatases yielding a yellow precipitate. Furthermore it shows some fluorescence (excitationat 320 nm to 490 nm). In contrast to classical indoxyl substrates, Aldolsubstrates work not only under aerobic but also under anaerobic conditions.</p>

<p>Chromogenic substrate for cellulases; red color</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>For detection of beta-galactosidase activity. <br>The colors of the chromogen can be adjusted by incorporating different functional groups, e.g. cyano or nitro group, which yields purple or black green colonies with beta-galactosidase positive strain.</p>

<p>Aldol 495 nonanoate is a bioluminescent substrate that can be used to measure the activity of Aldolase, which is an enzyme that catalyzes the conversion of glyceraldehyde-3-phosphate and dihydroxyacetone phosphate to D-glyceraldehyde. This substrate is used in various diagnostic assays, including food testing and staining. Aldol 495 nonanoate was developed by Cymit Quimica Pharmaceuticals and has been patented by EP 2427431 and US 8940909.</p>

<p>5-Bromo-4-chloro-3-indoxyl oleate is a fluorescent substrate that is used for staining and enzyme substrate. It is a conjugate that is used in environmental testing, food testing, and diagnostics. 5-Bromo-4-chloro-3-indoxyl oleate has a CAS number of 341972-97-2 and its molecular weight is 229.5 g/mol. It's purity is &gt; 98%, with a specific optical rotation of +147° (c=1, CHCl3). This compound can be used as a chromogenic or fluorogenic substrate in bioluminescence assays. 5BRIO3 has been shown to be an excellent ligand for the detection of DNA polymerase I activity.</p>

<p>The 4-Nitrophenyl a-D-xylopyranoside is a highly sensitive and reliable chromogenic substrate tailored for the detection and analysis of alpha-D-xylosidase enzyme activity. Upon enzymatic hydrolysis, it forms 4-nitrophenol, a yellow compound with remarkable fluorescence that enables a straightforward, quantitative assay in areas including environmental science, metabolism studies, and enzyme modifier exploration.</p>

<p>5-Bromo-4-chloro-1-methyl-3-indolyl-β-D-glucopyranoside is a fluorescent substrate used for the detection of β-glucuronidase. It can be used in several enzyme substrates, such as 5,5'-dithiobis(2-nitrobenzoic acid), 5,5'-dithiobis(3,4,5,-trimethoxybenzoic acid), and 4-(p-[N-(7-(2,7'-dimethyl -2H -chromenyl)-2H -indazolium)]phenylazo)benzoic acid. This product is used for diagnostics and culture media as well as food testing. The product has an extremely high purity and a CAS number.</p>

<p>2-Naphthyl-lpha-D-glucopyranoside is a substrate for α-glucosidase. 2-Naphthol is released upon hydrolyzation. By simultaneous coupling with a suitable staining reagent, such as hexazonium p-rosaniline, the corresponding reddish-brown azo-dye is formed. Naphthols can also be detected by fluorescence analysis.</p>

<p>Aldol 458 nonanoate is a high quality, chromogenic and fluorogenic substrate for use in enzymatic, chemiluminescent, and immunochemical reactions. Aldol 458 nonanoate is used as a chromogenic substrate for the detection of glucose oxidase activity in culture media and as a fluorogenic substrate for the detection of glucose oxidase activity in environmental testing. This product has CAS number 2484872-52-6.</p>

<p>Histochemical substrate for esterase</p>

<p>Aldol® 518 alpha-D-glucopyranoside is a fluorogenic enzyme substrate used for detection of alpha-D-glucosidase activity. The colorless enzyme substrate is cleaved by alpha-D-glucosidase, generating red fluorescent signal and in some conditions, an orange colour in the visible spectrum can get formed, staining bacterial colonies in faint orange coloration. Aldol® 518 alpha-D-glucopyranoside can be used under aerobic and anaerobic conditions.</p>

<p>4-Nitrophenyl beta-D-glucopyranoside-6-phosphate is a chromogenic substrate for glucose-6-phosphatase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl beta-D-glucopyranoside-6-phosphate is used in different applications such as the Glycogen storage disease diagnosis (e.g., von Gierke disease)</p>

<p>4-Nitrophenyl 3-O-(beta-D-glucopyranosyl)-alpha-D-glucopyranoside is a chromogenic substrate for alpha-glucosidase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl 3-O-(beta-D-glucopyranosyl)-alpha-D-glucopyranoside is used in different applications such as the Gaucher disease screening, carbohydrate metabolism studies</p>

<p>Chromogenic substrate yielding a soluble yellow chromophor for the colorimetric assay of α-L-fucosidase, especially in human serum.</p>

<p>Aldol® 515 caprylate is a chromogenic and fluorogenic enzyme substrate used for detection of lipase activity. The colorless enzyme substrate is cleaved by C8 esterases, yielding development of red coloration. In addition, red fluorescence is generated when Aldol® 355 fluorescence enhancer or a suitable matrix is present. Aldol® 515 caprylate can be used in enzyme assays and live bacterial cultures. Aldol® 515 caprylate is suitable for use in liquid and solid media, under aerobic as well as anaerobic conditions.</p>

<p>4-Nitrophenyl 4,6-benzylidene-alpha-D-maltoheptaoside is a chromogenic substrate for alpha-amylase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl 4,6-benzylidene-alpha-D-maltoheptaoside is used in different applications such as the Starch digestion studies, industrial enzyme optimization</p>