Glycosciences

A fucan sulphate found in brown marine algae (Phaeophyta-typically Fucus vesiculotus, Sargassum (illustrated), Alaria and Cladosiphon) and has been shown to have anticoagulant activity. The main constituents are α-1,4 and α-1,2 linked L-fucose sulphates although galactose and L-fucose are also present, our product contains approximately 20% L-fucose, and there are many variations of the basic structure found in different species of Phaeophyta. The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.

<p>A fucan sulphate found in brown marine algae (Phaeophyta-typically Fucus serratus, Ascophyllum nodosum, Laminaria japonica (illustrated) and Macrocystis pyrifyra) and has been shown to have anticoagulant activity. The main constituents are α-1,4 and α-1,2 linked L-fucose sulphates although galactose also occurs and there are many variations of the basic structure found in different species of Phaeophyta.<br>Fucoidan ≥ 95.0% Organic SO42- ≥ 20.0% Carbohydrate ≥ 70.0% L-Fucose ≥ 23.0% Alginic Acid ≤ 31.0% <br>The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.</p>

<p>6-Deoxy-6-fluoro-D-galactose is a fluorinated sugar that has been shown to inhibit the uptake of glucose by human liver cells. This sugar binds to the enzyme activity and inhibits its activity. 6-Deoxy-6-fluoro-D-galactose was found to be metabolized in a dose dependent manner, with higher doses leading to increased uptake of fluorescein and decreased uptake of glucose. 6FDG is also metabolized by chemical reactions, such as oxidation or hydration, which leads to a decrease in its inhibitory effect on glucose uptake. 6FDG has been shown to bind to sequences that are involved in sugar transport and cell culture studies have shown that this sugar can induce inhibition of cell growth at high concentrations.</p>

<p>Component of plant, especially grape, glucuronoxylans</p>

<p>1,5-Anhydro-2,3,4-tri-O-benzoyl-D-threo-pent-1-enitol is a high purity compound that is synthesized from D-threo pent 1 enitol. It is a sugar that belongs to the category of complex carbohydrates. This product can be custom synthesized and modified according to customer requirements.</p>

<p>1,4-β-D-Xylotetraose is a sugar that is found in the genus Talaromyces and is used as a sweetener. It is produced by plant cells and has been shown to have thermostability. 1,4-β-D-Xylotetraose has been found to have lipidomic activity, which may be related to its ability to bind lipids. It also has a dietary profile, which may contribute to its use as a supplement. 1,4-β-D-Xylotetraose can be used as an affinity agent for lipid profiling because it binds lipids with high affinity.</p>

This beta-cyclodextrin (β-CD) derivative is a functionalized cyclic oligosaccharide composed of seven glucose units, characterized by a hydrophilic exterior and a lipophilic cavity (bigger than α-CD and smaller than γ-CDs), which allows it to encapsulate various guest molecules. This structural feature facilitates its use in multiple applications, including pharmaceuticals, food enhancement, and cosmetics. In the pharmaceutical industry, it enhances the solubility and stability of poorly water-soluble drugs, improving their bioavailability and efficacy while also masking unpleasant tastes. The food sector utilizes it as a stabilizer for flavors, colors, and nutrients, extending shelf life by protecting sensitive ingredients from degradation. In cosmetics, it serves as a complexing agent for fragrances and active components, ensuring their stability and controlled release. Its use expands to many other fields, including nanotechnology for drug delivery systems, environmental remediation for extracting organic pollutants, textiles for slow-release fragrances, and analytical chemistry for chiral separation.

<p>2-Acetamido-1,3,4,6-tetra-O-acetyl-2-deoxy-b-D-mannopyranose is a synthetic carbohydrate. It is a modified form of the natural sugar mannose that has been fluorinated. This modification gives 2-Acetamido-1,3,4,6-tetra-O-acetyl-2-deoxy--b--D--mannopyranose an increased resistance to degradation by enzymes. The CAS number for this compound is 6730–10–5.</p>

<p>Intermediate in the synthesis of dapagliflozin</p>

Trivalent GalNAc precursor

<p>1-Octylamino-1-deoxy-D-glucitol is a natural product that is extracted from the bark of the tree Streptomyces griseorubens. It has been shown to have a diastereomeric ratio of 97:3 and an optical purity of 98%. The thermodynamic properties of this compound are determined by the reaction time, which can vary from 1 to 24 hours. The enantiomers are separated by chromatography or crystallization, and the solubility data is determined at 25°C.</p>

<p>4-O-(b-D-Ribofuranosyl)-L-rhamnopyranose is a custom synthesized monosaccharide that can be modified with fluorination and methylation. This sugar can be used for glycosylation reactions to form oligosaccharides or polysaccharides. The number of sugar molecules that are attached to the sugar determines the complexity of the carbohydrate. 4-O-(b-D-Ribofuranosyl)-L-rhamnopyranose is an example of a complex carbohydrate because it has four sugars attached to it.</p>

3,5-Di-O-benzoyl-2-deoxy-2,2-difluoro-D-ribonic acid-1,4-lactone (3DBR) is a nucleoside that has been shown to have antiaging properties. It has been found to be an effective scavenger of peroxyl radicals and reactive oxygen species (ROS). 3DBR also inhibits the formation of aluminum oxide and styrene by catalyzing the salt formation reaction. This compound also has anti-tumour activity and can be used as a chemotherapeutic agent for the treatment of cancer. It is heat resistant and can be combined with gemcitabine hydrochloride in chemotherapy.

Galactose (Gal) is the C4 epimer of glucose with one hydroxyl group axial which by Hudsons rules makes it slightly less stable than glucose (Hudson, 1948). However, galactose is very common in plants and animals, and occurs in many polysaccharides, such as, galactomannans (e.g. Guar, Locust Bean Gum), Carrageenans , Agar (L-Galactose), Hemicellulose, Gum Arabic [link] and galactans (e.g. from Lupin) (Whistler, 1993). Galactose is one of the key mammalian monosaccharides (glucose, galactose, mannose, fucose, N-acetyl glucosamine, N-acetyl galactosamine and sialic acid) and it occurs in blood, milk, gangliosides, N- and O-linked glycans (Gabius, 2009). Like glucose, galactose exhibits mutarotation (Acree, 1968) and is optically active (dextrorotary) with L-galactose as its enantiomer (levorotary).

<p>The chemical name for N-[2-(4'-Nitrophenylacetonitrile)]-2,3,4,6-tetra-O-pivaloyl-D-glucopyranoside is 4'-nitrophenyl 2,3,4,6-tetra-O-pivaloylmethyl glucopyranoside. It is a monosaccharide that has been custom synthesized and modified to contain a methyl group at the C2 position. This compound is also fluorinated at the C1 position and glycosylated at the C4 position. It is soluble in DMSO and methanol. The CAS number for this compound is 1263096-04-8.</p>

<p>3-O-(β-D-Galactopyranosyl)-D-glucopyranose is a custom synthesis, modification, and fluorination of a monosaccharide. It is a synthetic and modified saccharide. The molecular formula for this compound is C6H10O5 and its molecular weight is 180.17 g/mol. This chemical has been assigned CAS No. 28447-38-3 and has the following structure:</p>

<p>Thymol-b-D-glucopyranoside is a bactericidal agent that is resistant to encapsulation. It has been shown to be effective against animals and typhimurium in an incubated population and endogenous deaminase inhibitor strategy. The porcine activated food chemistry and abattoir experiments show that thymol-b-D-glucopyranoside has the potential to reduce populations of bacteria in the gastrointestinal tract by inhibiting protein synthesis.</p>

<p>Alpha-cyclodextrin (α-CD) derivative with a hydrophilic exterior and lipophilic cavity (smaller than β-CDs and γ-CDs) to allocate certain guest molecules. This structural characteristic enables applications in molecular encapsulation, solubility enhancement, and stabilization across multiple industries. In pharmaceuticals, it serves as a drug delivery vehicle, enhancing the bioavailability and stability of active ingredients. The food industry utilizes it as a stabilizer for flavors, colors, and nutrients, as well as a functional ingredient for its effects on lipid metabolism. In cosmetics, it acts as a complex agent for fragrances and active components. Its applications extend to analytical chemistry for chiral separation and to materials science for developing smart materials and nanosystems.</p>

Natural sweetener; vasodilator

<p>Methyl 2-acetamido-2-deoxy-β-D-galactopyranoside is an acetamido derivative of the sugar galactose. It is a white powder that is soluble in water and sparingly soluble in methanol. Methyl 2-acetamido-2-deoxy-β-D-galactopyranoside is used as a substituent for the synthesis of other compounds.</p>

<p>1,5-a-L-Arabinobiose is a sugar that is found in mammalian tissue and has been shown to have enzyme activities. It can be prepared by high performance liquid chromatography and titration calorimetry. 1,5-a-L-Arabinobiose has hydrogen bonding interactions with its neighbouring molecules and surface methodology. It also has structural analysis with hydrogen bonds and phenolic acids. 1,5-a-L-Arabinobiose is used as a probiotic bacteria growth factor in microalgal cultures.</p>

<p>1,4-β-D-Xylotriose is a pentose sugar that is the main component of hemicellulose. It is found in plant cell walls and has been studied using surface methodology to determine the covalent linkages and structure of 1,4-β-D-Xylotriose. Xylotrioses are also used as a substrate for enzyme reactions and have shown to have a number of enzymatic activities, including glycosidases, cellulases, xylanases, and arabinofuranosidases. Xylotrioses are also part of complex enzyme models that can be used to study disulfide bonds. Xylotrioses are polymers that are important for structural analysis due to the presence of β-1,4 links. The genome DNA has been found to contain many genes coding for xylanase enzymes.</p>

2-C-Methyl-L-ribono-1,4-lactone is a crystallized carbohydrate that contains the enantiomers L and D. It is a chiral molecule with two asymmetric carbon atoms. The L form has a higher yield than the D form and can be synthesized from l-arabinose, dimethylamine, and isomerisation. This compound is also present in ketoses such as d-xylose and 1-deoxy-d-ribulose. 2CMLR1L4L acts as an inhibitor of the enzyme d-galactose dehydrogenase, which catalyzes the conversion of d-galactose to d-glucose. Cyanide can bind to this compound to form cyanohydrin adducts, which are toxic to cells.

<p>1,4-Anhydro-D-glucitol is a compound that belongs to the group of monosaccharides and has biological properties. It has also been used in the production of acetate extracts from fetal bovine erythrocytes. The ester linkages are formed between 1,4-anhydro-D-glucitol and sodium salt by reaction with acetic anhydride. The reaction mechanism has been studied in detail, and it was found that hydroxyl groups on the molecule react with sodium ions to form an ester linkage. This compound is toxicologically safe at high doses, but can become toxic at lower doses due to its acid formation potential.</p>

2-Acetamido-4,6-O-benzylidene-2-deoxy-D-galactopyranose is a fluorescent dye that binds to the hydroxyl group of nucleic acids. It can be used for microscopy of cells and bacteria in culture. This dye is also used for the measurement of cavitation activity. The dye is added at a concentration of 0.1% to the cell culture media. After 24 hours, it can then be observed with a microscope under UV light. 2-Acetamido-4,6-O-benzylidene-2-deoxy-D-galactopyranose has been shown to have lysis effects on cells such as agarose gels and mammalian cells, leading to cell death by apoptosis or necrosis. It's also used as an indicator in gel electrophoresis experiments because it can bind to DNA and RNA molecules, which makes

This gamma-cyclodextrin (γ-CD) derivative is a modified cyclic oligosaccharide composed of eight glucose units, featuring a larger cavity size than α- and β-cyclodextrins. This structural characteristic allows γ-CDs to form inclusion complexes with a wider range of guest molecules, making it particularly versatile in various industries. In the food sector, it is used as a carrier and stabilizer for flavors, fat-soluble vitamins, and polyunsaturated fatty acids, protecting volatile compounds from evaporation. In pharmaceuticals, it enhances the solubility and bioavailability of poorly water-soluble drugs and, thanks to its larger ring size, allows for the encapsulation of larger molecules or even entire drug molecules. γ-CDs and derivatives are also used for environmental remediation and, in analytical chemistry, for the extraction and concentration of target substances.

Glycogen is a highly branched polysaccharide of glucose that serves as a form of energy storage in animals and fungi. It is the main storage form of glucose in the body.  In humans, glycogen is made and stored primarily in liver and muscle cells and functions as the second most important energy storage molecule to fat which is held in adipose tissue. Glycogen is analogous to starch and has a structure similar to amylopectin, but is more extensively branched and compact than starch. It occurs as granules in the cytosol/cytoplasm in many cell types, and plays an important role in the glucose cycle.

<p>Substrate for UDP-3-O-acyl-N-acetylglucosamine deacetylase (LpxC)</p>

<p>D-Glucosamine-2-N, 3-O, 6-O-trisulfate sodium salt is a high purity oligosaccharide that can be custom synthesized. This product is composed of sugar, Click modification, fluorination, glycosylation, and methylation. It has CAS No. and Oligosaccharide. This product is used in the production of complex carbohydrates due to its saccharide composition.</p>

<p>2,3,5-Tri-O-benzyl-D-ribofuranose is a carbohydrate that can be synthesized through an efficient method. It is a glycoside with an oxotitanium (oxo) group. The synthesis of this compound requires magnesium as the activating agent and o-glycosylation. The glycoconjugates of this compound are found in organisms such as fungi, yeast, and bacteria. In addition to its carbohydrate function, 2,3,5-Tri-O-benzyl-D-ribofuranose has been shown to have antimicrobial properties. This sugar has also been shown to have antiviral properties due to its ability to inhibit the enzyme ribonucleotide reductase (RNR).</p>

Alpha-cyclodextrin (α-CD) derivative with a hydrophilic exterior and lipophilic cavity (smaller than β-CDs and γ-CDs) to allocate certain guest molecules. This structural characteristic enables applications in molecular encapsulation, solubility enhancement, and stabilization across multiple industries. In pharmaceuticals, it serves as a drug delivery vehicle, enhancing the bioavailability and stability of active ingredients. The food industry utilizes it as a stabilizer for flavors, colors, and nutrients, as well as a functional ingredient for its effects on lipid metabolism. In cosmetics, it acts as a complex agent for fragrances and active components. Its applications extend to analytical chemistry for chiral separation and to materials science for developing smart materials and nanosystems.

<p>Gycosaminoglycan in many organs; joint lubricant and shock absorber</p>

<p>4-O-(2,3,4,6-Tetra-O-acetyl-b-D-glucopyranosyl)-1,2,3,6-tetra-O-acetyl-b-D-thioglucopyranose is a glycosylated saccharide that belongs to the group of complex carbohydrates. The glycosylation of 4-O-(2,3,4,6,-Tetra-O-acetyl b -D -glucopyranosyl)-1,2,3,6,-tetra -O -acetyl b -D -thioglucopyranose is achieved by the enzymatic reaction of an acetate donor and an acceptor molecule in the presence of glucose 1 phosphate (G1P) and UDP sugar pyrophosphorylase. It has been modified by methylation with dimethyl sulphate in the presence of</p>

<p>6'-O-Sulfated Lewis X is a synthetic, sulfated, monosaccharide that is modified with fluorine and methyl groups. It is used in the synthesis of oligosaccharides and polysaccharides. 6'-O-Sulfated Lewis X has been found to be effective in the prevention of glycosylation and sugar formation. This compound can also be used for click modification, as well as for modifying proteins or DNA. The CAS number is 59037-07-4.</p>

<p>Xylitol is a sugar alcohol that can be found in some plants, including berries and corn husks. It is also produced by the body during normal metabolism. Xylitol has been shown to have antimicrobial properties against aerobacter aerogenes, a bacterium that inhabits the human gastrointestinal tract. Xylitol inhibits bacterial growth by binding to glucose-6-phosphate dehydrogenase, which prevents the conversion of glucose into energy for cell growth and reproduction. Xylitol also affects the water balance of cells by inhibiting their ability to extract water vapor from their environment. Xylitol is metabolized by a number of bacteria strains, which leads to the production of hydrogen peroxide or xylose as an end product. The biochemical properties of xylitol are still being researched and it is not yet known how this compound interacts with other biological compounds.</p>

b-Lactopyranosyl phenylisothiocyanate is a synthetic carbohydrate that has been modified with fluorine, methylation, glycosylation, and click chemistry. It is used in the synthesis of saccharides and oligosaccharides. This compound can also be used to modify saccharides or oligosaccharides with fluorine, methylation, glycosylations, or click chemistry.

Methyl alpha-D-mannopyranoside is a methylated sugar used as an inhibitor of lectin-conjugate binding. It is commonly used in protein purification for eluting glycoproteins and other glycoconjugates from affinity chromatography columns of agarose lectin. In addition, Methyl alpha-D-mannopyranoside can be used in the mannosylation of lipid nanoparticles (LNPs) for vaccine or drug delivery which targets Antigen Presenting Cells (APCs) through mannose receptors. Methyl alpha-D-mannopyranoside is also known as Methyl alpha-D-mannoside or alpha-Methyl-D-mannoside.

<p>High purity grade.  Used in synthetic organic chemistry and natural product synthesis. Induces apoptosis by inhibiting the synthesis and increasing the efflux of glutathione. It is used for synthesis of optically active dipyrrolyl alkanols from pyrroles on the surface of montmorillonite KSF clay.Due to its integral role in the formation of DNA, 2-Deoxy-D-ribose is critical in studies of genetic expression, DNA repair mechanisms, and the synthesis of nucleotides. Researchers utilize it extensively in molecular biology and biochemistry to understand cell replication and gene function, and it serves as a standard in research pertaining to oxidative stress, where its degradation may indicate the presence of reactive oxygen species. Additionally, it is involved in the development of various pharmacological agents, particularly those targeting cancer and viral infections, where the synthesis and function of DNA are pivotal aspects of pathogenesis and treatment response.</p>

<p>4-Methylphenyl 4,6-O-[bis(1,1-dimethylethyl)silylene]-1-thio-β-D-galactopyranoside is a synthetic sugar that is used in the glycosylation of proteins. It is synthesized from 4-methylphenol and 1,1'-dimethylethylsilylene in the presence of trichlorosilane, followed by silylation with trimethylchlorosilane. The fluorinated site can be modified to suit your needs by following a Click chemistry protocol. This product has CAS No. 1242144-05-3 and is available for custom synthesis upon request.</p>

2,3,5-Tri-O-benzoyl-a-D-arabinofuranosyl bromide is a glycosylation reagent that can be used in the synthesis of polysaccharides and oligosaccharides. It is also used to modify sugars with methyl and fluorination reagents. 2,3,5-Tri-O-benzoyl-a-D-arabinofuranosyl bromide has CAS number 434868 9.

4'-Sulfated Lewis X methyl glycoside sodium is a synthetic monosaccharide. It is used in the synthesis of oligosaccharides and polysaccharides. This compound can be fluorinated to produce 4'-fluoro-4'-sulfated Lewis X methyl glycoside sodium. The sulfate group on this compound can be replaced with other groups such as carboxyl, cyano, nitro, and acetyl.

<p>Propofol-4-Hydroxy-4-D-glucuronide is a fluorinated monosaccharide that has been synthesized using the glycosylation, polysaccharide and modification methods. This compound is a custom synthesis that has been modified with methylation and click chemistry. The CAS number for this product is 54910-87-6. This product is a complex carbohydrate with high purity.</p>

<p>2-Amino-3,4-dihydroxybenzoic acid is an organic compound. It is a white solid that is soluble in water and polar organic solvents. 2-Amino-3,4-dihydroxybenzoic acid is used as an anti-inflammatory agent and for the treatment of arthritis.</p>

2,3-O-Isopropylidene-D-ribonic acid-1,4-lactone is an organic compound that belongs to the class of lactones. It is a chiral molecule with two asymmetric carbons and four stereogenic atoms. This compound can be used for the synthesis of optically active compounds. It is also a precursor for the synthesis of morpholines and phosphonates. 2,3-O-Isopropylidene-D-ribonic acid-1,4-lactone can be synthesized by reacting an enolate with an aldehyde in the presence of a base and acid catalyst. The acid catalyst causes elimination of water from the enolate to produce the desired product.

<p>Methyl 2,3,4-tri-O-benzyl-β-D-glucopyranoside is a modified sugar. It can be used in the synthesis of oligosaccharides and polysaccharides. This product is stable to organic solvents and has high purity. Methyl 2,3,4-tri-O-benzyl-β-D-glucopyranoside can be fluorinated by reacting with hydrogen fluoride gas to produce methyl 2,3,4-[tri(trifluoromethyl)oxy]benzyl β D glucopyranoside. The product is also available in the form of click modification (a type of chemical modification). Methyl 2,3,4-tri-O-benzyl-β D glucopyranoside is a custom synthesis that is CAS No. 435680 3.</p>

1,2,3,4-Tetra-O-benzoyl-6-O-tert-butyldiphenylsilyl-b-D-galactopyranose is a modified oligosaccharide that is synthesized and offered at high purity. The chemical name of this compound is 1,2,3,4 tetra O benzoyl 6 O tert butyldiphenylsilyl b D galactopyranose. This compound is fluorinated at the 2 position of the sugar molecule with a silyl group on the 3 position. It has CAS number 1222709-87 6.

<p>2-O-(a-D-Galactopyranosyl)-b-D-fucopyranosyl propylamine is a glycosylated synthetic compound with a molecular weight of 726.2. It is an excellent substrate for the glycosylation of proteins and nucleic acids, as well as an excellent candidate for Click modification, fluorination, saccharide modification and custom synthesis. 2-O-(a-D-Galactopyranosyl)-b-D-fucopyranosyl propylamine is a high purity product available in bulk quantities.</p>

A gallotannin found in plants, with various biological activities. Its anti-cancer effect has been demonstrated in several cancer cell lines, mediated by inhibition of DNA replication, proliferation and angiogenesis. Elicits anti-inflammatory, antioxidative and anti-diabetic effects. Recently, it has been identified as an inhibitor of c-Myc in hepatocellular carcinoma and multiple myeloma cells.

<p>The aldopentose L-arabinose (Ara) is, after xylose, the second most abundant pentose in nature. It is found in plant cell walls as a component of polysaccharides, including: hemicelluloses, pectin, arabinogalactan-protein complexes and in exudate plant gums, such as: Gum Arabic (Feher, 2018). L-Arabinopyranose is an important component of the mycobacterial cell wall and is involved in the synthesis of arabinogalactan and lipoarabinomannan, which suggests that it can modulate cell wall permeability and drug resistance. Mycobacterium smegmatis is a useful tool for research into Mycobacteria due to it being a "fast grower" and non-pathogenic (Zhou, 2019).</p>

Used as enzyme substrates, analytical standards and for in vitro diagnostics