D9260

Dextran from Leuconostoc mesenteroides

average mol wt 9,000-11,000

• Lineáris képlet: (C₆H₁₀O₅)_n
• CAS-szám: 9004-54-0
• EC-szám: 232-677-5
• MDL-szám: MFCD00130935
• UNSPSC kód: 12352201
• NACRES: NA.25

Tulajdonságok

• biológiai forrás: bacterial (Leuconostoc mesenteroides)
• Minőségi szint: 200
• Forma: powder
• optikai aktivitás: [α]/D 199°
• molekulatömeg: average mol wt 9,000-11,000
• oldhatóság: water: 0.1 g/mL, colorless to faintly yellow
• tárolási hőmérséklet: 2-8°C
• SMILES string: O1C(C(C(C(C1CO)O)O)O)OCC2OC(C(C(C2O)O)O)OCC(O)C(O)C(O)C(O)C=O
• InChI: 1S/C18H32O16/c19-1-5(21)9(23)10(24)6(22)3-31-17-16(30)14(28)12(26)8(34-17)4-32-18-15(29)13(27)11(25)7(2-20)33-18/h1,5-18,20-30H,2-4H2
• Nemzetközi kémiai azonosító kulcs: FZWBNHMXJMCXLU-UHFFFAOYSA-N

Leírás

Alkalmazás

Dextrans are used in many applications as platelet aggregants, plasma volume extenders, osmotic pressure regulators, stabilizers, organ separation media, matrix components, copolymers, microcarriers, binding agents, viscosity modifiers, antithrombotics, lubricants and physical structure components. They may be used as long hydrophilic spacer arms to improve the performance (freedom of movement) of conjugated/bound proteins. Dextrans may be derivatized for use in biosensor systems.
Dextrans of less than 60,000Da are generally considered low molecular weight dextrans. Low molecular weight dextrans are often preferred versus high molecular weight dextrans due to their viscosities, aggregation and permeation properties. High molecular weight, water-soluble, dextran polymers have been used in a wide variety of biomedical applications. Dextran (9,000-11,000), a low molecular weight dextran, may be used to study processes such as transient plasma membrane and blood brain barrier (BBB) permeabilization. It may be used as a sugar based crowding agent in protein packing and folding studies.

Use of dextrans as long and hydrophilic spacer arms improves the performance of immobilized proteins acting on macromolecules.

Elkészítési megjegyzés

With the exception of the highest MW dextran, D5501 (MW range = 5 million to 40 million), dextrans are very water soluble. Sigma tests the solubility of dextrans at concentrations generally exceeding 30 mg/ml in water. Dextrans are also freely soluble in DMSO, formamide, ethylene glycol, and glycerol. Neutral-aqueous dextran solutions can be sterilized by autoclaving at 110-115^oC for 30 to 45 minutes. Dextran can be hydrolyzed by strong acids at high temperatures. The terminal reducing end group of dextran can be oxidized in alkaline solutions.

Egyéb megjegyzések

To gain a comprehensive understanding of our extensive range of Dextrans for your research, we encourage you to visit our Carbohydrates Category page.

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable
• Egyéni védőeszköz: Eyeshields, Gloves, type N95 (US)