Oligosaccharides

<p>3-O-(2-Acetamido-2-deoxy-D-glucopyranosyl)-1,2-di-O-benzyl-4,6-O-benzylidene-D-mannopyranoside is a synthetic sugar that is used in the synthesis of glycosylations. It has been fluorinated and methylated to increase its stability and reactivity. It is also synthetically derived from a saccharide and modified for use in Click chemistry. 3-O-(2-Acetamido-2-deoxy--D--glucopyranosyl)-1,2--di--O--benzyl--4,6--O--benzylidene--D--mannopyranoside is soluble in water and ethanol. This product has CAS No. 5118876–78–3 and can be custom synthesized by us.</p>

<p>NeuAc-a2,3-Gal-b-1,4-Glc-GlycineNH2 is a carbohydrate that belongs to the group of saccharides. It is an oligosaccharide that has been synthesized via a custom synthesis. This product is high purity and has been modified with methylation, glycosylation, and click modification.</p>

<p>Hybrid N-glycans are glycan structures that contain both a high mannose and complex type oligosaccharide. Hybrid N-glycans are expressed on the surface of mammalian cells, and they can be found in human serum. Hybrid N-glycans have been shown to activate caspase 3 and induce apoptosis in some mouse models. They also have biological functions such as growth factor binding or antibody binding. Hybrid N-glycans may be involved in the activation of the immune system or in the development of cancerous tumors.</p>

<p>3,4,2',3',4'-Penta-O-acetylsucrose (PAS) is a carbohydrate that has been found to be a potent inhibitor of the enzyme glycogen phosphorylase. The reductive elimination of the acetyl groups from PAS produces 2,3,4'-tri-O-acetylsucrose (TAS), which is also an inhibitor of glycogen phosphorylase. TAS inhibits this enzyme by binding to the active site and blocking access to the substrate. TAS also inhibits gluconeogenesis in liver cells by competing with glucose for uptake into the cell. In vitro studies have shown that TAS binds to boron trifluoride and lithium aluminum hydride more effectively than it does to diazomethane or detritylation.</p>

<p>b-D-Lactosyltrichloroacetimidate heptaacetate is a glycosylation product of the b-D-lactose and trichloroacetic anhydride. This compound is used in the synthesis of oligosaccharides and polysaccharides. It has been shown to be a fluorinated, methylated, or click modified monosaccharide or disaccharide which can be prepared through custom synthesis, or by modification of existing saccharides. This compound has been found to have high purity with a CAS number of 1142022-76-1.</p>

<p>LS-tetrasaccharide c-GEL is a modified oligosaccharide carbohydrate that is synthesized to have a high degree of purity. It can be used in the synthesis of other saccharides and sugar derivatives, such as fluorinated saccharides. LS-tetrasaccharide c-GEL is an important raw material for the modification of glycans and glycolipids.</p>

<p>N-Acetylneuraminic acid trimer disodium salt is a methylated saccharide that is used in the synthesis of complex carbohydrates. It can be modified by Click chemistry to produce a variety of compounds, including oligosaccharides. N-Acetylneuraminic acid trimer disodium salt can also be fluorinated for use as an organic fluorinating agent in glycosylation reactions to make sugar derivatives. This compound has high purity and is custom synthesized to meet customer needs.</p>

<p>Xylosyl-cellobiose is a monosaccharide that was synthesized and modified by methylation, click modification, and fluorination. The compound has been shown to be complex carbohydrate and an oligosaccharide with a polysaccharide. It is a high-purity substance that can be used for the synthesis of saccharides, carbohydrates, or sugars. CAS No. 129865-02-7</p>

<p>1,3,4,6-Tetra-O-acetyl-2-(2,3,4-tri-O-benzyl-a-L-fucopyranosyl)-a-D-galactopyranose is a methylated saccharide that has been synthesized to be used in the synthesis of complex carbohydrates. It is also called Tetra O Acetyl D Galactopyranoside. The chemical name of this product is 1,3,4,6 Tetra O Acetyl 2-(2,3,4 Tri O Benzyl A L Fucopyranosyl) A D Galactopyranose Methyl Ester. This product is also known as 6Fluoro 3 Indoxyl Beta D Galactopyranoside. This product can be custom synthesized to order and it can be modified based on customer specifications.</p>

<p>2-Acetamido-3-O-(2,3,4,6-tetra-O-acetyl-b-D-galactopyranosyl)-4-O-acetyl-6-O-(2,3,4,6-tetra-O-benzoyl-b-D -galactopyranosyl)-2 deoxy a D galactopyranosyl Fmoc threonine tert butyl ester is a custom synthesis with high purity and custom synthesis. This product is recommended for methylation and glycosylation reactions. It is a complex carbohydrate that has been modified by fluorination and saccharide.</p>

4-O-Acetyl-3,6-di-O-(2,3,4,6-tetra-O-acetyl-a-D-mannopyranosyl)-D-mannopyranose is a synthetic nonreducing sugar that has been modified with an acetate group at C4 and acetyl groups at C3 and C6. This compound is a white to off white crystalline solid. It is soluble in methanol and formamide. The chemical formula of the compound is CHO.

<p>Methyl 2-acetamido-2-deoxy-3-O-(b-D-galactopyranosyl)-b-D-glucopyranoside is a modification of the carbohydrate, which is a complex carbohydrate. It has been synthesized using Custom synthesis and Oligosaccharide. This product is highly pure, with a purity of 99%. Methyl 2-acetamido-2-deoxy-3-O-(b-D-galactopyranosyl)-b-Dpglucopyranoside is used in the synthesis of Monosaccharide and Methylation. It can also be used in Glycosylation and Polysaccharide as well as for sugar or Fluorination.</p>

<p>Man-7 N-Glycan is a sugar that is composed of an oligosaccharide and a monosaccharide. The oligosaccharide is composed of an alpha-1,6-linked mannose, an alpha-1,2-linked mannose, and a beta-1,2-linked mannose. The monosaccharide is composed of glucose. This sugar has been modified with methylation and fluorination on the mannose side chains. It also contains glycosylation in the form of O-(alpha-D-mannopyranosyl)-(alpha-D-mannopyranosyl)n or O-(alpha-D-mannopyranosyl)-(beta-D-mannopyranosyl)m. A CAS number for this carbohydrate has not yet been assigned because it is custom synthesized. Man 7 N Glycan can be found in nature as a component of glycogen</p>

<p>The product is a complex carbohydrate with a non-sugar linker. It is synthesized by the reaction of 4-methoxyphenyl 6-O-(methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-b-D -galacto)-2,3 -di -O -benzyl -b -D -galactopyranoside with borane in THF and methanol. The product is purified by chromatography on silica gel and characterized by FTIR spectroscopy (KBr).</p>

<p>Shortest chain oligosaccharide that can be classified as a maltodextrin. A component of liquid glucose (a commercial sweetener composed of glucose, maltose, maltotriose and maltotetrose).</p>

<p>3-O-Acetyl-1,6-anhydro-2-azido-2',3'-di-O-benzyl-4',6'-O-benzylidene-2-deoxy-b,D cellobiose is a fluorinated oligosaccharide that can be customized for a variety of applications. The sugar unit contains an acetyl group on the C1 position and an azido group at the C2 position. This compound has been subjected to click chemistry in order to form a covalent bond with 4,6'-O-benzylidene 2,3'-dideoxy b,D cellobiose.</p>

<p>k-carrageenan derived heptasaccharide tetrasulfate+(3-6 anhydrogalactose)</p>

<p>The major gel forming component in agar, agarose, consists of a linear chain of sequences of 1,3 linked β-D-galactopyranosyl units and 1,4 linkages to 3,6-anhydro-α-L-galactopyranosyl units. Gelation is done via the formation of double helices (Arnott, 1974). Agar's properties are similar to gelatin as it is primarily used as a plating gel for microbial cultures (Lahaye, 1991). However, agar is a good substitute for animal-based gelatin in vegetarian foods and is easy to use in food gels in a similar way to the carrageenans. Common food applications of agar include: puddings, custards, and soft candies. Agar improves the texture of processed cheese and frozen desserts, and is also added to baked goods to inhibit staling. A creative food application uses agar-based gel cubes that are infused with fruit extract or wine to make a vegetable-based aspic (Armisén, 2009).<br>Agar contains two polysaccharides Agarobiose and Agaropectin. Both Gelidium latifolium and Gelidium amansii are sources of both Agar and Agarose. The images were kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.<br>Agaropectin<br>Agaropectin is a sulphated non-gelling galactan comprising about 30% of Agar. Half ester sulphate is present in varying amounts plus D-glucuronic acid and small amounts of pyruvic acid. As with Agarose the main chain has alternating residues of D-galactose and L-galactose heavily modified with acidic side-groups which are usually sulfate, glucuronate, and pyruvate. Pyruvic acid is possibly attached in an acetal form to the D-galactose residues of the agarobiose skeleton. No formal structure of Agaropectin appears to have been published.<br>Agarose<br>Agarose is a linear gelling polysaccharide of (1-3) linked β-D-galactopyranose residues linked to 3,6-anhydro-α-L-galactopyranose via 1-4 bonds. Agar contains about 60% Agarose.</p>

<p>Blood Group B type II tetrasaccharide is a carbohydrate that is synthesized by custom synthesis. It is a complex carbohydrate with a molecular weight of 909890-21-7. It has the chemical formula C6H14O6 and CAS No. 909890-21-7. Blood group B type II tetrasaccharide can be modified, methylated, glycosylated, and fluorinated. It is an oligosaccharide with a monosaccharide repeating unit that can be found in the blood group B type II antigen on erythrocytes. This saccharide has six sugar units (three glucose and three galactose) connected in a chain by alpha 1-3 glycosidic linkages. The sugar units are attached to each other by beta 1-4 glycosidic linkages.</p>

<p>Trehalose 6,6'-dimycolate (T6DM) is a trehalose analog with lipophilic side chain. T6DM causes apoptosis by blocking the toll-like receptor 4 (TLR4) and TLR2 pathways. T6DM has also been shown to reduce the inflammatory response caused by lipopolysaccharides (LPS), which are bacterial cell wall components. T6DM is a promising agent for the treatment of infectious diseases such as tuberculosis and other bacterial infections that cause inflammation.Isolated from microbial source: mycobacterium bovis</p>