Glycoscience

<p>In water, hydroxypropyl cellulose forms liquid crystals with many mesophases depending on concentration. These mesophases include isotropic, anisotropic, nematic and cholesteric, the latter resulting in many colors such as violet, green and red. Pharmaceutical applications include treatments for medical conditions such as dry eye syndrome (keratoconjunctivitis sicca), recurrent corneal erosions, decreased corneal sensitivity, exposure and neuroparalytic keratitis. It is also used as a binder in tablets. Hydroxypropylcellulose is also used as a thickener, a binder and emulsion stabiliser in foods with E number E463.  HPC is used as a support matrix for DNA separations by capillary and microchip electrophoresis.</p>

<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>

<p>Reference compound for metabolites of the pentosephosphate pathway</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>Applications N,N-[Iminobis(trimethylene)]bis-D-gluconamide (cas# 86303-20-0) is a compound useful in organic synthesis.<br></p>

<p>3'-a-Sialyl-N-acetyllactosamine sodium salt is a high purity, custom synthesis sugar. It has been modified with fluorination, glycosylation, and methylation to provide the desired properties. This product is also available in other forms such as monosaccharide and saccharide. 3'-a-Sialyl-N-acetyllactosamine sodium salt can be used in various applications including Click modification, fluoroamination, glycosylation, carbonylation and methylation. CAS No. 350697-53-9</p>

<p>Methyl D-arabinofuranoside is an antimycobacterial agent that inhibits the synthesis of mycolic acids, which are important components of the cell wall of Mycobacterium tuberculosis. Methyl D-arabinofuranoside has been shown to be active against drug-resistant strains and has been well tolerated by animals. This compound can be synthesized from 2,4-dichlorophenylacetic acid and arabinose in two steps. The first step involves a three-component condensation reaction with sodium hydroxide, hydrochloric acid, and 2,4-dichlorophenylacetic acid. The second step is a nucleophilic attack on the pyran ring of methyl D-arabinofuranoside with hypophosphorous acid. Methyl D-arabinofuranoside can also be prepared by reacting sodium nitrosobenzene with sodium benzene sulfinate in alcoholic solution</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>1,2,3,5-Tetra-O-acetyl-β-D-ribofuranose is a sugar that has been acetylated at the hydroxyl group. It has biological properties that are similar to those of 1,2,3,5-tetraacetyl-β-D-ribofuranose. This compound is an analog of 1,2,3,5-tetraacetyl-β-D-ribofuranose and can be used as a model system for studying the effects of acetylation on the properties of this molecule. Acetylation at the hydroxyl group in sugars can lead to low energy (chemical) properties. The acetylated form of this compound reacts with trifluoromethanesulfonic acid to give tetrafluoroethylene and ammonium sulfate in a model reaction solution. 1,2,3,5-Tetraacetyl β</p>

<p>D-ribulose-5-phosphate sodium is a nucleotide sugar that is one of the ribonucleotides, which are fundamental components of RNA. D-ribulose 5-phosphate sodium has been shown to be an intermediate in the metabolism of ribulose and catalyzes the oxidation of d-arabinose. This enzyme also catalyses the synthesis of fatty acids and participates in reactions involving glycerolipids and phospholipids. The reaction mechanism involves a double displacement with simultaneous attack by a water molecule on C2' and C3'. When deuterium is present, it affects the rate of these reactions in a way that depends on the orientation of the substrate to the enzyme.</p>

<p>2-Acetamido-1,3,4,6-tetra-O-acetyl-2-deoxy-a-D-galactopyranose is a fluorinated complex carbohydrate that has been modified by methylation and acetylation. This product is a custom synthesis that has not been previously described in the scientific literature. It is synthesized from 2, 3, 4, 6 tetraacetyl alpha D galactopyranoside and 2 deoxy alpha D galactopyranose. The chemical properties of this compound are similar to those of other complex carbohydrates such as glycogen and heparin.</p>

<p>4-Deoxy-D-glucose is a sugar that is synthesized by the condensation of two molecules of erythrose. It has been shown to be an efficient donor substrate for nucleophilic attack, which can lead to the synthesis of glycosides and other natural products. 4-Deoxy-D-glucose is also a competitive inhibitor of uridine diphosphate (UDP) glucose, which is an enzyme involved in the biosynthesis of UDP sugars and glycoproteins. The concentration of 4-deoxy-D-glucose affects its catalytic mechanism, as it acts as a competitive inhibitor at high concentrations. Molecular modeling has revealed that this molecule adopts a chair conformation with significant solvent exposure.</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>D-Xylulose 5-phosphate sodium salt is a synthetic monosaccharide that can be used in the synthesis of oligosaccharides, polysaccharides, and complex carbohydrates. It is also used in glycosylation reactions. D-Xylulose 5-phosphate sodium salt has been fluorinated to provide better stability and solubility. The compound has a molecular weight of 206.06 g/mol and a CAS number of 105931-44-0. This product is available for custom synthesis upon request.</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>