Polissacáridos
Os polissacarídeos são compostos orgânicos formados pela união de vários monômeros, que são ligados por ligações glicosídicas para criar moléculas grandes e frequentemente ramificadas. Esses carboidratos complexos desempenham papéis cruciais em várias funções biológicas, incluindo armazenamento de energia, suporte estrutural e comunicação célula-célula. Nesta seção, você encontrará uma ampla variedade de polissacarídeos essenciais para pesquisas em bioquímica, biologia molecular e glicosciência. Esses compostos são vitais para estudar vias metabólicas, estruturas da parede celular e o potencial terapêutico dos carboidratos. Na CymitQuimica, fornecemos polissacarídeos de alta qualidade para apoiar sua pesquisa científica, garantindo precisão e confiabilidade nos seus resultados experimentais.
Foram encontrados 506 produtos de "Polissacáridos"
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Ethyl cellulose
CAS:Ethyl cellulose is similar in structure to methyl cellulose with ethyl replacing the methyl groups. It is approved for use in regulated markets such as food and pharmaceuticals. In pharmaceuticals it can mask the taste of bitter actives, enhance the strength and appearance of tablets and capsules, and enable controlled release formulations. In food products it functions as a binder, film former and flavour fixative.Pureza:Min. 95%Cor e Forma:White Yellow PowderWheat starch
CAS:Starch is an energy storing polysaccharide produced by higher plants and some algae. Pure starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol. It consists of two types of polysaccharide: the linear and helical amylose (α-1,4-linked glucose) and the branched amylopectin (α-1,4 and α-1,6-linked glucose). Depending on the plant, starch generally contains 20 to 25% amylose and 75 to 80% amylopectin by weight.Pureza:Min. 95%Cor e Forma:PowderBacterial alginate - from fermentation of Azotobacter vinelandii or Pseudomonas mendocina
An alginate-like polysaccharide produced by the fermentation of Azotobacter vinelandii or Pseudomonas mendocina. The chemical structure consists of blocks of (1,4) linked-β-D-polymannuronic acid (poly M), (1,4) linked-α-L-polyguluronic acid (poly G) and alternating blocks of the two uronic acids (poly MG). Unlike the alginate from seaweed, this polysaccharide is partially acetylated.Cor e Forma:PowderPeso molecular:~100KDaStarch from potato
CAS:Starch is an energy storing polysaccharide produced by higher plants and some algae. Pure starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol. It consists of two types of polysaccharide: the linear and helical amylose (α-1,4-linked glucose) and the branched amylopectin (α-1,4 and α-1,6-linked glucose). Depending on the plant, starch generally contains 20 to 25% amylose and 75 to 80% amylopectin by weight.Cor e Forma:White PowderDextran sulfate sodium - MW 5,000-8,000
CAS:Dextran sulphate is a dextran derivative whose ulcer (colitis) -causing properties were first reported in hamsters and extrapolated a few years later to mice and rats. The exact mechanisms through which dextran sulphate induces intestinal inflammation are unclear but may be the result of direct damage of the monolayer of epithelial cells in the colon, leading to the crossing of intestinal contents (for e.g. commensal bacteria and their products) into underlying tissue and therefore induction of inflammation. The dextran sulphate sodium induced ulceration model in laboratory animals has some advantages, when compared to other animal models of colitis, due to its simplicity and similarities to human inflammatory bowel disease.Fórmula:(C6H7Na3O14S3)nPureza:Min. 95%Cor e Forma:PowderFluorescein isothiocyanate-dextran - Average MW 70,000
CAS:Anterograde and retrograde tracer in neurons; biologically inertPureza:Min. 95%Hydroxypropyl cellulose - Average MW 80,000
CAS: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.Pureza:Min. 95%Glycogen - from oyster for molecular biology
CAS: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.
Pureza:Min. 95%D-Aminogalacturonic Acid Hydrochloride
CAS:Produto ControladoApplications 2-Amino-2-deoxygalacturonic acid was a component of the lipopolysaccharide from P. aeruginosa NCTC 8505 and probably occurs in the region of polysaccharide responsible for O-antigenic specificity.
References Wilkinson, S.G., et al.: Biochem. J., 149, 783 (1975),Fórmula:C6H12ClNO6Cor e Forma:NeatPeso molecular:229.62Isomaltotetraose
CAS:Produto ControladoApplications Isomaltotetraose, can be used for immunizication of hybridoma antibodies. the use of synthetic glycolipids as antigens enables one to study the gene control of antibody responses to glycolipids and to investigate the combining-site specificities of antibodies to a single antigenic determinant.
References Lai, E., et al.: Mol. Immunology, 22(9), 1021 (1985); Chen, H. T., et al.: Mol. Immunology, 24(4), 333 (1987);Fórmula:C24H42O21Cor e Forma:NeatPeso molecular:666.58Isomaltopentaose
CAS:Applications Isomaltopentaose, is an isomalto-oligosaccharides (IMO) compound, used as functional food ingredients.
References Hu, Y., et al.: Lett. App. Microbio., 57, 108 (2013);Fórmula:C30H52O26Cor e Forma:NeatPeso molecular:828.72Cellulose - Particle Size approx 50 um
CAS:Cellulose is a linear polysaccharide of β 1-4 linked glucose residues. The polysaccharide chains are bundled as microfibrils in cell walls and provide the essential structural components within growing plants. Each microfibril exhibits a high degree of three-dimensional internal bonding resulting in a crystalline structure that is insoluble in water, resistant to reagents and very strong.Pureza:Min. 95%Cor e Forma:PowderUlvan - Ulva rotondata-Summer
CAS:Ulvans are structural polysaccharides present in the cell walls of green algae such as Ulva armoricana, Ulva rotondata, Ulva rigida, Ulva lacterca and Ulva pertusa. They are highly sulphated and contain rhamnose 3-sulphate, xylose, xylose 2-sulphate, glucuronic acid and iduronic acid residues. Ulvan has several potentially valuable functionalities such as gel formation for agricultural and food applications. It has also an anticoagulant, antioxidant, antihyperlipidemic and antitumor activities that are attractive for pharmaceutical applications. The image was kindly provided by Prof Mike Guiry from Cork who runs ‘The Seaweed Site’.Pureza:Min. 95%Cor e Forma:PowderFluorescein isothiocyanate-dextran - Average MW 10,000
CAS:Fluorescein dextran (FD) is widely used as both an anterograde and retrograde tracer in neurons and for numerous other applications. It is biologically rather inert having α-1,6-linked glucose residues resistant to cleavage by most endogenous cellular glycosidases. It has low immunogenicity and makes an ideal long-term tracer for live cells. FD also serves as a valuable marker for cell loading of macromolecules by micro-injection, vesicular fusion, and electroporation, as well as for the uptake and internal processing of exogenous materials by phagocytotic and endocytic pathways.Pureza:Min. 95%Hydroxypropyl cellulose - Average MW 200,000
CAS: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.Cor e Forma:PowderFluorescein isothiocyanate-carboxymethyl-dextran - Average MW 70,000
Fluorescein isothiocyanate carboxymethyl dextran (FITC-CM Dextran) has been reported to provide a valuable carrier for nanoparticles of iron oxide. These products provide a potent tool for contrast enhancement in magnetic resonance imaging.Pureza:Min. 95%Teichuronic acid
CAS:Teichuronic acid is isolated from the cell walls of Micrococcus luteus. The structure has been elucidated as [ManNAcUAp-(β-1,6)-Glcp-(α -1,4)]n.Pureza:Min. 95%Diethylaminoethyl-dextran HCl
CAS:DEAE-Dextran hydrochloride (DEAE-D) is a positively-charged dextran derivative that can be used for vaccine production, gene therapy, protein stabilisation, dyslipidemia prevention, as flocculating agent, and many other applications. DEAE-D is also used for transfecting animal cells with foreign DNA. DEAE-Sepharose, DEAE-650 and DEAE-Sephadex are commonly used in chromatography for the separation of biological molecules such as proteins and carbohydrates.
Pureza:Min. 95%Cor e Forma:White Off-White PowderFluorescein isothiocyanate-dextran - Average MW 3,000-5,000
CAS:Fluorescein isothiocyanate dextran is a fluorescent derivative of a dextran fraction with an average molecular weight of approximately 4000. It is supplied as a yellow powder which is readily soluble in water.
Pureza:Min. 95%Methyl cellulose - USP testing specifications, viscosity: 1,500 cP
CAS:Methyl cellulose is a synthetic polymer of cellulose. It is prepared by treating the natural polymer with a methylating agent, such as dimethyl sulfate. Methylation is carried out in the presence of an acid catalyst to produce mainly methyl ethers and methyl esters. The degree of substitution may be controlled by the amount of catalyst. Methyl cellulose is used as a thickener, emulsifier, or stabilizer in many food products, including ice cream and toothpaste.Pureza:Min. 95%
