31420

Dextran from Leuconostoc mesenteroides

for GPC, analytical standard, Mw 50,000

• Lineáris képlet: (C₆H₁₀O₅)_n
• CAS-szám: 9004-54-0
• EC-szám: 232-677-5
• MDL-szám: MFCD00130935
• UNSPSC kód: 12352201
• NACRES: NA.24

Tulajdonságok

• grade: analytical standard; for GPC
• Minőségi szint: 100
• molekulatömeg: M_n ~35,000; M_p ~45,000; M_w ~50,000
• analit kémiai osztály(ok): oligosaccharides
• technika/technikák: gel permeation chromatography (GPC): suitable
• Mw/Mn: ~1.43
• alkalmazás(ok): food and beverages
• format: neat
• 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

Általános leírás

Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, with a linear backbone of α-linked D-glucopyranosyl repeating units. Dextrans are found as bacterial extracellular polysaccharides. They are synthesized from sucrose by Leuconostoc mesenteroides and Lactobacillus brevis. Bacteria employ dextran in biofilm formation or as a protective coating to evade host phagocytes in the case of pathogenic bacteria.
Dextran from Leuconostoc mesenteroides (Mw: 50,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).

Alkalmazás

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

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 2
• Egyéni védőeszköz: Eyeshields, Gloves, type N95 (US)