Fluorogenic Substrates

<p>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.</p>

<p>4-Methylumbelliferyl b-D-chitobiose heptaacetate is a fluorogenic substrate that is widely used in diagnostic and research applications. It can be used as a substrate for enzymes such as alkaline phosphatase, β-glucuronidase, β-galactosidase, β-glucosidase, α-amylase, α-glucosidase, α-mannosidase, and α-fucosidase. 4MUBH can also be used in the detection of bacterial growth. 4MUBH reacts with NADPH to produce light through chemiluminescence. This product has been shown to have a high purity and quality and should not be stored in UV light or strong acids. CAS No. 55900-34-0</p>

<p>Fluorogenic substrate targeting caspases 3 and 7</p>

<p>4-Methylumbelliferyl beta-D-gentiotrioside is a fluorogenic substrate for beta-glucosidase. 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 beta-D-gentiotriosideas a substrate for measuring the beta-glucosidase activity is used for Gaucher disease screening.</p>

<p>Substrate for aminopeptidase a or the assay of γ-glutamyl transferase yielding a blue fluorescent solution upon cleavage.</p>

<p>Fluorogenic substrate targeting phosphatase</p>

<p>6-Hexanoylamino-4-methylumbelliferyl b-D-galactopyranoside is a chromogenic substrate for beta-galactosidase.</p>

<p>4-Methylumbelliferyl beta-D-xylobioside is a fluorogenic substrate for xylanase. 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 beta-D-xylobiosideas a substrate for measuring the xylanase activity is used for detecting bacterial infection and gut microbiome analysis.</p>

<p>6,8-Difluoro-4-methylumbelliferyl b-D-galactopyranoside, commonly known as DiFMUG, is a fluorogenic substrate to detect beta-galactosidase. It has higher sensitivity than the common MUG (4-methylumbelliferyl beta-D-galactopyranoside) subtrate.</p>

<p>Fluorogenic substrate for β-glucosidase</p>

<p>Fluorogenic substrate for β-galactosidase</p>

<p>4-Methylumbelliferyl-β-D-xylopyranoside is a fluorescent probe that has been used to visualize the enzyme activities of glycosidases, such as endoglycosidase H and α-amylase. It is also used as a tool in structural analysis of oligosaccharides. 4-Methylumbelliferyl-β-D-xylopyranoside has been shown to inhibit collagenase activity in mice, which may be due to its ability to inhibit protein synthesis and cell division.</p>

<p>4-Methylumbelliferyl alpha-L-idopyranosiduronic acid 2-sulfate disodium salt is a chromogenic substrate that is used in the detection of glycosidases. It reacts with enzymes such as alpha-amylase, beta-galactosidase, and beta-glucosidase to produce a fluorescent product. This product can be detected using a fluorometer or spectrophotometer. The CAS number for 4-methylumbelliferyl alpha-L-idopyranosiduronic acid 2-sulfate disodium salt is 1045020-74-3.</p>

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<p>4-Methylumbelliferyl beta;-D-glucuronide (MUG) is commonly used as a substrate for detecting beta;-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.</p>

<p>2'-(4-Methylumbelliferyl)-alpha-D-N-acetylneuraminic acid, sodium salt is a fluorogenic substrate for alpha-galactosidase. It is used in the analysis of cultured media and as a conjugate for enzyme substrates. This product has been shown to be useful in food testing, diagnostics, and environmental testing. 2'-(4-Methylumbelliferyl)-alpha-D-N-acetylneuraminic acid, sodium salt has been used as a chromogenic substrate for the detection of alpha-galactosidase activity. This product is also used as a bioluminescent substrate for the detection of bioluminescence.</p>