Fluorogenic Substrates

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Fluorogenic substrate for ?-L-iduronidase

5-Acetamidofluorescein-di-(b-D-galactopyranoside), also known as C2FDG, is a fluorogenic substrate for beta-galactosidase that generates a green fluorescence after cleavage (Em ~520 nm). It is used in enzyme activity assays and in flow cytometry in animal, bacterial, and yeast cells.

2-Dodecylresorufin is a fluorescent probe that reacts with the hydroxyl radicals in the cell, which are generated by the enzyme superoxide dismutase. 2-Dodecylresorufin can be used to measure reactive oxygen species (ROS) and ROS-induced cellular damage. It is also used to study oxidative stress in vitro. The chemical structure of 2-dodecylresorufin contains a linker arm that provides a reversible linkage to the cell surface, allowing for extracellular measurements of reactive oxygen species (ROS). This compound has been shown to have high reactivity, making it useful for studying population dynamics and fluorescent techniques.

L-Leucine-PAB-resorufin is a substrate for enzymes such as β-glucuronidase, α-glucosidase, and β-galactosidase. It is used in the diagnosis of bacterial infections and the detection of certain bacteria in urine and stool samples. L-Leucine-PAB-resorufin can be used to detect the presence of bacteria that produce β-galactosidase and/or β-glucuronidase by releasing resorufin from the substrate. This reaction produces a blue color in the presence of a fluorogenic substrate like fluorescein diacetate or fluorescein isothiocyanate. L-Leucine-PAB-resorufin is also used to detect bacteria that produce α-glucosidase by releasing fluorescamine from the substrate. This reaction produces a green color in the presence of a chrom

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.

4-Methylumbelliferyl N-acetyl-alpha-D-neuraminic acid ammonium is a fluorogenic substrate for neuraminidase. 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-acetyl-alpha-D-neuraminic acid ammoniumas a substrate for measuring the neuraminidase activity is used for detecting the glycoproteins on the surface of influenza A and B viruses, as well as for sialidosis diagnosis.

4-Methylumbelliferyl N,N-diacetyl-b-D-chitobioside is a fluorogenic substrate for peptide hormones. It is used in vitro to study the polymerase chain reaction (PCR) of human serum and other biological samples. 4-Methylumbelliferyl N,N-diacetyl-b-D-chitobioside is an orally bioavailable prodrug that undergoes hydrolysis by esterases to release 4-methylumbelliferone, which is then converted into the fluorescent product methylumbelliferone by cellular esterases. This product can be detected using a fluorescence sensor with high specificity and sensitivity. The fluorescence signal generated by this product is proportional to the enzyme concentration and can be used as a biomarker for peptide hormone production or neuronal death.

3-Carboxyumbelliferyl b-D-galactoside BSA conjugate is a fluorogenic substrate that is used in chemiluminescent enzyme assays. The reaction of this compound with the enzyme β-galactosidase leads to an increase in the intensity of light emitted by the compound, which can be measured using a luminometer. This product is often used in diagnostics, such as food testing and environmental testing, as well as high quality research.

4-Methylumbelliferyl lignocerate 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 lignocerateas a substrate for measuring the lipase activity is used for X-linked adrenoleukodystrophy diagnosis and peroxisomal disorder screening.

Fluorogenic substrate for α-L-Fucosidase yielding a blue fluorescent solution upon cleavage.

Fluorochrome for calibration of fluorimeters.  Used with corresponding fluorogenic substrates for the diagnosis of Krabbe - and Niemann-Pick A/B disease.

4-Methylumbelliferyl β-D-glucuronide (MUG) is commonly used as a substrate for detecting β-glucuronidase. MUG is used for identifying E. coli contamination in food, drinkingwater, clinical samples and for rapid bacterial identification in blood cultures. It is recommended in international normatives (ISO, DIN) as a fluorogenic substrate for detection of E. coli. MUG is also a tool assaying the glucuronidase gene in plants.For fluorogenic detection of  E. coli you can try our patented RUG (ER175455).

4-Methylumbelliferyl-beta-L-fucopyranoside is a fluorogenic substrate that is used in food testing. It also has uses as a chromogenic substrate and a ligand for biological studies. 4-Methylumbelliferyl-beta-L-fucopyranoside is a conjugate of 4-methylumbelliferone and beta-D-fucopyranosyl ester, which is an enzyme substrate for the detection of phosphatases. This product can be used to detect the activity of phosphatase enzymes in various media, including culture media, environmental testing, and staining. 4MUFBPY also has chemiluminescent properties that can be used for bioluminescence assays.

PAIRED PRODUCT AVAILABLE: alpha-L-iduronidase Enzyme, FI179383 4MU-alpha-L-iduronide-2-sulphate is a fluorogenic substrate for 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, iduronidate-2-sulphatase from biological samples cleaves the sulphate group from 4MU-alpha-L-iduronide-2-sulphate. 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.

Sensitive fluorogenic substrate for leucine aminopeptidase or a broad specificity aminopeptidase like aminopeptidase M that releases a bright blue fluorescent dye, 7-amino-4-methylcoumarin upon enzyme activity (excitation 380nm emission 440nm).

This Clips-O substrate 7-(4'-L-Alaninamido)-rac-(3'-octanoyloxy)butyloxy) coumarin allows the detection of three enzymatic activities (L-alanine aminopeptidase, C8-esterase and oxidation of 4-amino-3-hydroxybutyloxy either enzymatically or by exposure to sodium periodate) with one single substrate and give a positive fluorescent signal only in presence of all activities. The main virtues of Clips-O substrates are an increased stability towards non-enzymatic hydrolysis that results in a reduced background and high sensitivity.

Resorufin beta-D-cellobioside is a fluorogenic substrate for the enzyme beta-glucosidase. It is soluble in water and can be used as a chromogenic substrate for beta-galactosidase. Resorufin beta-D-cellobioside is also used as a ligand to study protein interactions, such as those between lectins and glycoproteins. This product is of high purity and quality, with CAS No. 1000404-48-7.

Monofluoresceinated mannitol is a fluorescently labeled form of mannitol. It is used as a tracer for metabolism studies.

Green fluorescent cationic dye