Oligosaccharides

<p>Man-9 N-glycan is a glycoprotein that is found on the surface of many viruses. It has an oligosaccharide structure, which consists of a mannose and a glucose molecule linked by an alpha-1,3-glycosidic bond. The Man-9 N-glycan can be found in human serum and is involved in lectin binding to cells. It also has antiviral activity and may be used as a model system for studying glycosidic bonds. This glycan can be broken down into smaller components by methyl glycosides or titration calorimetry, which is a technique for determining the molecular weight of substances. The Man-9 N-Glycan binds to toll-like receptor 2 (TLR2) on the surface of human cells, which activates an antibody response.</p>

<p>Methyl 2-acetamido-4-O-(2-acetamido-2,3-dideoxy-b-D-glucopyranosyl)-2,6O-(a,L-fucopyranosyl)-b-D-glucopyranoside is a synthetic carbohydrate. It is a high purity and custom synthesis product with CAS No. 97242-84-7. This product has been fluorinated and methylated as well as glycosylated and click modified to increase its stability.</p>

<p>3-O-(2-Acetamido-2-deoxy-a-D-galactopyranosyl)-D-galactopyranose is an endothelial cell growth factor that is generated by the enzymatic activity of galactosyltransferase. It binds to lectin, glycan, and monoclonal antibodies. This molecule has been shown to have biological properties that are related to cancer and immunology. 3-O-(2-Acetamido-2-deoxy-a-D-galactopyranosyl)-D-galactopyranose may be used as a glycolipid marker in blood group typing and in the detection of cervical cancer cells.</p>

<p>Galactosyl isomaltol is a sugar molecule that is produced by the enzymatic hydrolysis of lactose. It has been shown to have antimicrobial activity against human pathogens and can be used as an antioxidant. Galactosyl isomaltol binds to lysine residues on bacterial cell walls, preventing the formation of new cells and causing cell death by interfering with protein synthesis. The addition of galactosyl isomaltol to food decreases the levels of phycocyanin, which are a type of fluorescent pigment found in blue green algae. This compound also has magnetic resonance analysis properties that could be used for diagnosis.</p>

<p>An α-anomer, obtained by crystallization at low temperature, can be dehydrated to stable form above 130°C or an unstable (hygroscopic) form at lower temperatures. An example of the applications for α-Lactose monohydrate is in dry powder inhalers.  These are devices that deliver medication to the lung in the form of a dry powder generating an aerosol directly from the drug powder or mixture, using an excipient such as lactose monohydrate.</p>

<p>Chitotriose undecaacetate is a synthetic substrate that is used in transfecting experiments. It has high sensitivity and can be used to introduce nucleic acid into cells. Chitotriose undecaacetate is used as a synthetic fluorometric assay for the determination of chitinase activity in vitro or as a substrate for cell-free synthesis of nucleic acids. It has been shown to possess moieties that are sensitive to hydrogen chloride and chloride ions, making it an effective probe for the determination of these ions. Chitotriose undecaacetate also reacts with sephadex G-200, which makes it useful for separating DNA fragments by electrophoresis.</p>

<p>Benzyl 4-O-(b-D-galactopyranosyl)-b-D-xylopyranoside is a synthetic monosaccharide that has been modified with fluorine. This compound is used to modify complex carbohydrates like glycosaminoglycans and glycoproteins. It is also used in the synthesis of oligosaccharides and polysaccharides, as well as in click chemistry. Benzyl 4-O-(b-D-galactopyranosyl)-b-D-xylopyranoside is available for custom synthesis, and can be ordered in high purity.</p>

<p>Globoside is the most abundant neutral glycolipid in the erythrocyte membrane.</p>

<p>GT1b ganglioside (ammonium salt) has a core tetrasaccharide structure (Galβ1,3GalNAcβ1,4Galβ1,4Glc) with two sialic acids (NeuAc) linked α2,3/α2,8 to the inner galactose residue, sialic acid (NeuAc) linked α2,3 to the terminal galactose residue, and ceramide linked β to position 1 on the reducing terminal glucose residue (Ledeen, 2009). GT1b ganglioside is one of the major gangliosides in neuronal and glial membranes. It interacts with myelin-associated glycoprotein (MAG) and is essential for long-term axon-myelin stability. GT1b ganglioside also acts as a receptor for bacterial toxins, such as, tetanus and botulinum toxins (Nishiki, 1996), as well as for viruses. A few examples of which include: Merkel cell polyomavirus, JC virus, BK virus, norovirus, and others (Low, 2006).</p>

Methyl 3-O-(2-acetamido-2-deoxy-b-D-galactopyranosyl)-a-D-galactopyranoside is a sugar that is synthesized by the Click modification of 3,4,6-trihydroxybenzoic acid and 2,3,6,7,8-pentahydroxyacetophenone. This sugar is used in glycosylation reactions to modify proteins or peptides.

<p>Carbon source for E. coli; inhibitor of lysozymes</p>

<p>Produced by the fast pyrolysis of cellulose</p>

<p>Neutral disaccharide naturally present in human breast milk and possible bifidus factor, acceptor for the Helicobacter pylori enzyme α1,2-fucosyltransferase and disaccharide involved in the expression of Lewis blood group antigens.</p>

<p>1,4-β-D-Xylobiitol is a monosaccharide that is synthesized by the glycosylation of β-D-xylose. It is an important component of complex carbohydrates found in plants and animals. Xylobiitol can be modified with methylation or Click chemistry to produce 1,4-β-D-xylopyranosiduronic acid and 1,4-β-D-xylopyranuronic acid respectively. In addition, it can be fluorinated to create 1,4-β-D-fluoroxylobiitol and modified with saccharide or oligosaccharides to produce 1,4-[α]-,1,3-[α]- or 1,3-[β]-linked xylobiitols. Xylobiitol can also be modified with polysaccharides to form xylanolybioside conjugates in which GlcUA residues are linked</p>

<p>Lactose 6'-sulfate is a custom synthesis of a complex carbohydrate and an oligosaccharide. It is modified by methylation and glycosylation, which can be altered to create other saccharides such as galactose. Lactose 6'-sulfate has been fluorinated in the alpha position and contains a sulfate group that is attached with a click chemistry reaction. Lactose 6'-sulfate has CAS number 1015758-24-3 and is high purity.</p>

<p>Gala1-3(Fuca1-2)Galb1-3GlcNAcb1-3Galb1-4Glc (B antigen hexasaccharide Type I)</p>

<p>Trehalose-6,6'-dibehenate (TDB) is a novel synthetic lipid that has been shown to have beneficial effects in the treatment of inflammatory bowel disease. This compound may act as an anti-inflammatory agent by inhibiting toll-like receptor 4 (TLR4)-mediated signaling and TLR4-dependent production of proinflammatory cytokines. TDB also inhibits HIV infection by interfering with CD4+ T cell function and decreasing the number of CD4+ cells in the gut. In addition, TDB has been shown to be effective against lps-induced inflammatory response in cell culture.</p>

<p>4-Methoxyphenyl 4-O-[4-O-(4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-2-O -levulinoyl)-b,D,Glucopyranosyl]-3,6,-di-, Obenzyl 2deoxy 2phthalimido bDglucopyranosyl]-2deoxy 2phthalimido bDglucopyrano sugar is a complex carbohydrate that has been synthesized in a custom synthesis. It is composed of a glucose oligosaccharide with a methoxyphenol glycoside at the reducing terminus and an α-(1,6)-linked mannose at the nonreducing terminus. The carbohydrate has been modified by fluorination and methylation. The molecule contains an acetal bond between the carbonyl group of the terminal monosaccharide and the</p>

<p>4-Methoxyphenyl 4-O-(3,6-di-O-benzyl-2-deoxy-2-phthalimido-b-D-glucopyranosyl)-3-O-benzyl-6-O-(2,3,4,triO -benzyl--aLfucopyranosyl) -2 deoxy 2 phthalimido b D glucopyranoside is a complex carbohydrate with a molecular weight of 1807. It has been synthesized by the methylation of 4 methoxyphenol and 3 benzaldehyde followed by the click modification of a glycoside. The CAS No. is 123624–72–0. This product has been made in order to be used as an intermediate for the synthesis of oligosaccharides and polysaccharides. The purity level is high and the modification is customized according to customer requirements. This product contains sacchar</p>

<p>Lactose is the principal sugar in human and most other mammalian milks, ( 4-O-(beta-d-galactopyranosyl)-d-glucopyranose). Lactose undergoes mutarotation; it is a reducing sugar and is significantly less soluble in water than sucrose. Lactose is much less sweet than sucrose (at ~1% about 0.15 (sucrose=1). The enzyme lactase (beta-galactosidase), which is present in the small intestine, catalyzes hydrolysis of lactose to form glucose and galactose. Anhydrous lactose is an excipient, filler, diluent, and bulking agent in a wide variety of pharmaceutical tablets, capsules, powders and other preparations. Lactose also has applications as a nutrient and multi-functional ingredient in infant formulae, geriatric, dietetic and health foods.</p>