Oligosacáridos

<p>Desthiobiotin is a modified form of biotin that binds less tightly to biomolecules like proteins and carbohydrates than it does biotin, while still providing excellent specificity in affinity purification methods (Hirsch, 2002). The structure of GD2-oligosaccharide-desthiobiotin (sodium salt) comprises (GalNAcβ1,4Galβ1,4Glc) of its two sialic acids linked α2,3/α2,8 to the central galactose residue (Ledeen, 2009). The desthiobiotin is attached β to position 1 of the reducing glucose moiety. GD2 ganglioside is expressed at a low concentration in the central nervous system, nerves, skin melanocytes and stem cells in healthy adults. On the other hand, GD2 ganglioside is overexpressed in a number of tumors including: neuroblastoma, melanoma, small cell lung carcinoma and brain tumors. Recently, GD2 ganglioside has been found in low concentration on breast cancer stem cells (CSC) that possess: self-renewal properties (division without disrupting the undifferentiated state) and tumor-initiating capabilities. It has been suggested that GD2 ganglioside may be developed as an effective target antigen for CSC immunotherapy (Fleurence, 2017).</p>

<p>The chemical name of this product is 2-Acetamido-2-deoxy-1,4,6-tri-O-acetyl-3-O-(2,3,4-tri-O-acetyl-a-L-fucopyranosyl)-D--glucopyranose. This product is a synthetic carbohydrate that has been custom synthesized and modified. It is a complex carbohydrate with an acetamido group on the nonreducing end and an acetylated sugar moiety on the reducing end. This product can be used in methylation or glycosylation processes. The CAS number for this product is 309263-13--6 and it has a molecular weight of 569.</p>

<p>α 1,4-glucoheptasaccharide derived from starch by hydrolysis and chromatography</p>

<p>4-Methoxyphenyl 4-O-(3-O-allyl-b-D-galactopyranosyl)-3-O-allyl-b-D-glucopyranoside is a custom synthesis product that is used as a synthetic intermediate in the modification of complex carbohydrates. This product is a fluorinated sugar, with a high purity and high quality. It has been modified to include methyl groups at specific positions on the sugar molecule. The CAS number for this product is 8721401.</p>

Neu5Acα(2-6)Galβ(1-4)GlcNAc-β-ethylamine is a glycosylation agent that is used to modify complex carbohydrates, such as polysaccharides and oligosaccharides. This product is a custom synthesis, which may be modified according to customer specifications. These modifications include methylation, click modification, fluorination, and saccharide modification. The desired purity of this product can be determined by the level of fluorescence in the solution.

4-Methoxyphenyl 6-O-(methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-a-D-galacto-2-nonulopyranosylonate)-2,3 -di O benzyl b D galactopyranoside is a modified oligosaccharide that is synthesized from the sugar galactose. The methyl group on the 4 position of the phenol end of the molecule is substituted with an acetamide group to form 4 methoxyphenyl 6 O (methyl 5 acetamido 4 7 8 9 tetra O acetyl 3 5 dideoxy D glycero a D galacto 2 nonulopyranosylonate)-2 3 di O benzyl b D galactopyranoside. This molecule has been fluorinated at the 2 and 3 positions

Drug carrier for cancer therapy & imaging, biocompatible, soluble, biodegradable

<p>Carbomethoxyethylthioethyl 4-O-(4-O-[6-O-{a-D-glucopyranosyl}-a-D-glucopyranosyl]-a-D-glucopyranosyl)-b-D-glucopyranoside is a synthetic carbohydrate with a molecular weight of 1406. It has been custom synthesized and modified to contain fluorine, methyl, and saccharide groups. Carbomethoxyethylthioethyl 4-O-(4 -O-[6 -O-[a -D - glucopyranosyl] - a - D - glucopyranosyl] - a - D - glucopyranosyl) b - D - glucopyranoside has been shown to be useful in the synthesis of oligosaccharides and polysaccharides.</p>

<p>Primeverose is a p-hydroxybenzoic acid that is found in the genus Primula and mammalian tissue. Primeverose has been shown to inhibit the activity of an enzyme called fatty acid activated, which is involved in the biosynthesis of anthraquinone glycosides. Primeverose is also able to hydrolyze enzymes such as primeverose and may act as a signal peptide for biological samples. The hydroxyl group on primeverose can form hydrogen bonds with other molecules and is present in food composition.</p>

<p>6-a-D-Glucopyranosylmaltotriose tetradecaacetate is a synthetic carbohydrate that is used as a building block for the synthesis of complex carbohydrates. It is synthesized from maltotriose by glycosylation with 6-a-D-glucopyranose and subsequent enzymatic hydrolysis. 6-a-D-Glucopyranosylmaltotriose tetradecaacetate has been shown to be resistant to modification of its methyl groups, which makes it an ideal candidate for custom synthesis. This compound has been shown to be stable under physiological conditions, which makes it ideal for use in biomedical applications.<br>6-a-D-Glucopyranosylmaltotriose tetradecaacetate can be used in the synthesis of oligosaccharides or polysaccharides due to its high purity, which is comparable to that of dext</p>

<p>3,2'-Di-O-acetyl-3',4'-O-carbonyl-6,6'-di-O-tert-butyldimethylsilyl-lactal is a fluorinated oligosaccharide that is custom synthesized for glycosylation and polysaccharide modifications. This product has been shown to be resistant to degradation by enzymes, including aminoglycosides, beta-lactam antibiotics, and penicillin. 3,2'-Di-O-acetyl-3',4'-O-carbonyl-6,6'-di-O-tert-butyldimethylsilyl--lactal is a high purity product with CAS number 207787 - 39 - 0.</p>

<p>3-O-(2-Acetamido-2-deoxy-a-D-glucopyranosyl)-D-galactose is a synthetic compound that is synthesized by the reaction of 3,4,6-trihydroxypyranose with trifluoroacetic anhydride. The product can be purified to the desired level of purity using preparative HPLC or recrystallization. The CAS number for this compound is 97096-73-6.END&gt;</p>

<p>Synthetic building block for oligosaccharide synthesis</p>

<p>Benzyl 2-acetamido-2-deoxy-4,6-O-benzylidene-3-O-(2,3,4,6-tetra-O-acetyl-b-D-galactopyranosyl)-a-D galactopyranoside is a complex carbohydrate with a CAS number of 8632784. It is an oligosaccharide that is modified with methylation and glycosylation. This molecule has a molecular weight of 907.19 and the purity level is high at 99%. This product can be used for fluoroquinolone resistance research or as an intermediate for other chemical modifications.</p>

<p>3-O-(2-Acetamido-3,4,6-tri-O-acetyl-2-deoxy-D-glucopyranosyl)-1,2-di-O-benzyl-4,6-O-benzylidene--D--mannopyranoside is an oligosaccharide that has a high purity and custom synthesis. This compound is synthesized by Click modification of the sugar with fluorination. The glycosylation and methylation reactions are then carried out to obtain the final product. 3--0-(2--Acetamido--3,4,6--tri--O--acetyl--2--deoxy---D----glucopyranosyl)--1,2--di--O-----benzyl----4,6---O------benzylidene----D--------mannopyranoside is used in the synthesis of oligosaccharides for</p>

<p>Tetra-O-acetyl-3-O-(2,3,4,6-tetra-O-acetyl-b-D-glucopyranosyl)-D-glucopyranose is a covalently bound glycoside of benzoic acid and glucose. It can be obtained by the chemical catalysis of clostridium in an acetate medium. The reaction produces a tetrasaccharide with three acetate groups at C2, C3 and C6. This compound has shown to have antimicrobial activity against Clostridium licheniformis and Clostridium butyricum.</p>

Glycyl-lacto-N-fucopentaose I is an oligosaccharide that is a modified form of the carbohydrate, glycogen. It has been synthesized and its structure determined through the use of nuclear magnetic resonance spectroscopy. Glycyl-lacto-N-fucopentaose I is a complex carbohydrate with a molecular weight of 6,280 Da. The chemical formula for it is C194H290O60F6N8O6. This compound is soluble in water, ethanol, methanol, acetone and acetic acid. Glycyl-lacto-N-fucopentaose I has CAS No. 122959-00-5 and one monosaccharide unit methylated with one glycosylation site and one polysaccharide unit with two sugar units fluorinated.

<p>Hyaluronate fluorescein is a synthetic, high purity, custom-synthesized molecular weight of 50kDa. It is a complex carbohydrate with a sugar backbone and many attached monosaccharides. Hyaluronate fluorescein has been modified by methylation and glycosylation. This product can be used for fluorescent labeling of oligosaccharides and carbohydrates.</p>

<p>Chondroitin sulphate hexasaccharide ammonium salt is a synthetic glycoconjugate that is used as a drug for the treatment of osteoarthritis and other joint diseases. It is a complex carbohydrate consisting of glucuronic acid, galactose, N-acetylgalactosamine, and sulfate residues. Chondroitin sulphate hexasaccharide ammonium salt has high purity and can be custom synthesized to your specifications. This product is methylated with an acetyl group at carbon 6. The monosaccharides are modified by glycosylation with glucose or mannose residues. Chondroitin sulphate hexasaccharide ammonium salt has been click-modified to include a carboxylic acid moiety on the primary amine group at carbon 2 and an amino group on the terminal amino group at carbon 3.</p>

<p>Agarose is a polysaccharide found in red algae, typically Gelidium and Gracilaria. It is a strictly alternating polysaccharide of α-1,3 linked D-galactose and β-1,4 linked L-3,6 anhydrogalactose with occasional sulfation at position 6 of the anhydrogalactose residue. Agaro-oligosaccharides result from cleavage at galactose residues and neoagaro-oligosaccharides from cleavage at 3,6-anhydro residues. Neoagarooctaose is reported to have potential for novel cosmeceuticals.</p>