Oligossacarídeos

<p>Trehalose is a naturally occurring disaccharide found in many organisms.Its role in nature is as versatile as its applications in the laboratory. Trehalose is synthesized by cells in response to stress and helps retaining the cellular integrity under tough conditions: An important function of Trehalose is to stabilize protein structures and to prevent proteins from their degradation. Researchers use Trehalosefor instance as a carbon source in selective microbiological media, as desiccation protectant and for cryoprotection.</p>

<p>Useful oligosaccharide-lipid conjugate for raising antibodies.</p>

<p>2-Acetamido-2-deoxy-3-O-(b-D-galactopyranosyl)-D-galactopyranose (also known as galacto-N-biose, GNB and T antigen) is a β 1-3’ linked disaccharide which is found in the gastrointestinal tract as a core component of mucin. GNB has been shown to have potential to protect against glutamate excitotoxicity, a process in which nerve cells can be damaged or destroyed. GNB, along with lactose-N-biose, are found in human milk but are not metabolised by gut enzymes and are instead broken down to a digestible form by bifidobacteria found in the intestinal systems of infants in a symbiotic process.</p>

<p>Potential prebiotic oligosaccharides made from agar by enzymatic hydrolysis</p>

<p>This mixture contains some of the neutral and sialylated oligosaccharides found in human meconium.</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>Lactose is the principal sugar in human and most other mammalian milks, ( 4-O-(β-d-galactopyranosyl)-d-glucopyranose) (Collins, 2006). 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 (β-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 (Linko, 1982).</p>

<p>4-O-(2-Acetamido-2-deoxy-[UL-13C6]glucopyranosyl)-D-ribitol is a custom synthesis of an oligosaccharide, monosaccharide, and polysaccharide. It is a high purity and CAS No. custom synthesis with a high degree of modification. This product has been synthesized by methylation and glycosylation for use in the study of the structure and function of complex carbohydrates. The fluorination was done to the saccharide to give it the desired properties for use in various applications.</p>

<p>Please enquire for more information about D-Maltose monohydrate including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Glycoside of Sialyl Lewis X</p>

<p>Isolated from the partial acid and enzymic hydrolysates of several of the mannans,  galactomannans and glucomannans. While the trisaccharide has been isolated from all of these sources the tetrasaccharide has only been isolated from ivory-nut mannan, white spruce (Picea glauca) and Pinus strobus glucomannans. Crystalline penta- and hexa-saccharides have been isolated from ivory-nut mannan hydrolysates.</p>

<p>Dermatan sulphate tetrasaccharide ammonium salt is a synthetic, high purity oligosaccharide that is also known as Dermatan sulfate. Dermatan sulfate is a complex carbohydrate that is composed of a repeating sequence of three monosaccharides: glucuronic acid, N-acetylgalactosamine and N-acetylglucosamine. Dermatan sulfate has been shown to have an inhibitory effect on the growth of bacteria such as Staphylococcus aureus and Mycobacterium tuberculosis. This molecule can be modified to include fluorination or methylation for custom synthesis.</p>

<p>Chondroitin disaccharide 6S sodium salt is a synthetic, fluorinated, oligosaccharide that has been custom synthesized and glycosylated. It is a sugar-based compound with a high purity and excellent solubility in water. It was synthesized by click modification of the sugar monomer with an amine group at the reducing end. The chondroitin disaccharide 6S sodium salt was further modified with methylation to yield a product with a higher purity.</p>

<p>4-Glucopyranosylmannose is a disaccharide compound, which is a synthetic carbohydrate derived from the enzymatic or chemical glycosylation processes. It consists of glucose and mannose units linked through a glycosidic bond. The compound is sourced through advanced synthetic methodologies involving specific glycosyltransferases or chemical catalysts that facilitate the precise attachment of these sugar moieties.</p>

<p>Hyaluronate fluorescein is a polymer of hyaluronic acid that has been modified with fluorescein. It is synthesized by the methylation and saccharide coupling of an oligosaccharide, followed by Click modification and the addition of a fluorescent dye. Hyaluronate fluorescein has a molecular weight of 2500kDa. It is highly purified and can be custom-synthesized to suit specific needs.</p>

<p>Monofucosyl, monosialyllacto-N-neohexaose-APD-HSA is a complex carbohydrate that is synthesized through the enzymatic polymerization of glucose. This synthetic oligosaccharide is composed of a single monosaccharide, fucose, and two sialic acid residues. Monofucosyl, monosialyllacto-N-neohexaose-APD-HSA can be used in the synthesis of various glycoconjugates such as glycoproteins, glycolipids, or proteoglycans. The chemical modification of this sugar molecule can also be performed to produce a variety of products with different properties.</p>

<p>α-6⁴-6³-Di-galactosyl-mannopentaose is a specialized oligosaccharide, which is a type of complex carbohydrate. This compound is derived from natural plant sources and its structure comprises a mannopentaose core linked with two galactose units. The mode of action involves specific interactions with gut microbiota, where it selectively enriches beneficial bacterial populations, such as Bifidobacteria and Lactobacilli. These interactions occur by serving as a fermentation substrate, promoting the growth of microbes that confer beneficial effects on host health.</p>

<p>Blood group B trisacchharide-APE-HSA is a synthetic carbohydrate that inhibits the synthesis of complex carbohydrates. The methylation of saccharides and polysaccharides can be accomplished by the addition of an amine to the 3′ hydroxyl group. In this reaction, the sugar is attached to a protein carrier (e.g., human serum albumin) via an amide bond, which prevents its degradation by proteases in the body. The modification of saccharides and polysaccharides is also accomplished through click chemistry, which is based on copper catalysis. This process involves attaching two functional groups through a copper-mediated reaction, forming a new carbon-carbon bond. Modification of saccharides and oligosaccharides can be accomplished using either chemical or enzymatic methods. Sugar modification can be achieved using high purity enzymes that have been custom synthesized for specific purposes (e.g., glycosylation). Carbohydrate modification can</p>

<p>NGA2 Glycan, 2-AB labelled is a complex carbohydrate that is custom synthesized for research purposes. It is a high purity, high quality product that has been fluorinated and glycosylated. NGA2 Glycan, 2-AB labelled is used in the synthesis of oligosaccharides and polysaccharides. This product can be used for glycosylation, methylation and click modification.</p>

<p>Maltotetraose-APD-HSA is a complex carbohydrate with a high purity. Maltotetraose-APD-HSA is a synthetic oligosaccharide that has been modified by glycosylation, methylation, and fluorination. It is an alpha 1,4 linked maltotetraose that has been conjugated to HSA. Maltotetraose-APD-HSA has the CAS number 113789-04-8 and its molecular weight is 495.7 Da. Maltotetraose-APD-HSA can be found in the monosaccharides saccharide and carbohydrate categories.</p>

<p>1,5-α-L-Arabinohexaose is a carbohydrate. It is a nonreducing sugar that can be found in plants. 1,5-α-L-Arabinohexaose has an optimum pH of 5 and an ethanol concentration of 0.02%. The enzyme form of 1,5-α-L-Arabinohexaose is α-(1→6)-glycosidase. This enzyme hydrolyzes the α-(1→6) glycosidic bond between two glucose residues in a polysaccharide chain to produce β-(1→4) bonds. It also hydrolyzes the β-(1→4) glycosidic bond between two galactose residues to produce β-(1→2) bonds and oxidizes the terminal carbon atom to produce aldehyde products.<br>A structural analysis of this carbohydrate was conducted using marine microorganisms and it was found that they contain galacturonic acid and sugar residues</p>

<p>4-O-Acetyl-3,6-di-O-(2,3,4,6-tetra-O-acetyl-a-D-mannopyranosyl)-1,2-ethyledine (CAS No. 230953-17) is a carbohydrate that has been modified with acetyl groups at the 3 and 6 positions of the monosaccharide unit. This modification is a complex carbohydrate that is made up of oligosaccharides and polysaccharides. The modification causes changes in the chemical properties of the carbohydrate compared to natural saccharides. 4-O-(2,3,4,6) tetra O acetyl a D mannopyranosyl 1 2 ethyledine b D mannopyranose has been used in synthesis of custom sugars for medical applications. It has also shown anti inflammatory activities against Mycobacterium tuberculosis and Mycobacterium avium complex</p>

<p>Please enquire for more information about 1,5-α-L-Arabinooctaose including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Lacto-N-fucopentaose II-APD-HSA is a complex carbohydrate that has been chemically modified to include a fucose sugar. Lacto-N-fucopentaose II-APD-HSA is synthesized by the click reaction and then modified with the addition of an acetyl group. The product is then methylated and purified by HPLC. Lacto-N-fucopentaose II-APD-HSA can be used in a wide range of applications, including as a component in glycosylation reactions or as an adjuvant for fluorescence labelling.</p>

<p>Cellulose derivative, food thickener and emulsifier, bulk forming laxative</p>