31423

Dextran from Leuconostoc mesenteroides

for GPC, Mw 270,000

• Formula condensata: (C₆H₁₀O₅)_n
• Numero CAS: 9004-54-0
• Numero CE: 232-677-5
• Numero MDL: MFCD00130935
• Codice UNSPSC: 12352201
• NACRES: NA.24

Proprietà

• Grado: for GPC
• Livello qualitativo: 100
• PM: M_n ~165,000; M_p ~195,000; M_w ~270,000
• Classi chimiche degli analiti: oligosaccharides
• tecniche: gel permeation chromatography (GPC): suitable
• Mw/Mn: ~1.64
• applicazioni: food and beverages
• Formato: 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; FZWBNHMXJMCXLU-UHFFFAOYSA-N

Descrizione

Descrizione generale

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: 270,000) may be used as an analytical standard to calibrate the column for gel permeation chromatography (GPC).

Applicazioni

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Dispositivi di protezione individuale: Eyeshields, Gloves, type N95 (US)