31430

Dextran

analytical standard, suitable for gel permeation chromatography (GPC), Set M_p 1,000-400,000

• Lineare Formel: [C₆H₁₀O₅]_n
• CAS-Nummer: 9004-54-0
• UNSPSC Code: 41116107
• NACRES: NA.24
• EC Number: 232-677-5
• MDL number: MFCD00130935

Eigenschaften

• grade: analytical standard
• Quality Segment: 100
• mol wt: M_p 1,000-400,000
• analyte chemical class(es): oligosaccharides
• technique(s): gel permeation chromatography (GPC): suitable
• application(s): food and beverages
• format: neat
• 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
• InChI key: FZWBNHMXJMCXLU-UHFFFAOYSA-N

Beschreibung

General description

Dextran is an exopolysaccharide synthesized by lactic acid bacteria from sucrose. It consists of repeating units of D-glucose with the monomers joined to each other through α-1,6 linkages. In addition, the linear D-glucose chains show branching at frequent intervals, linked by α-1,4, α-1,3, or α-1,2 linkages.

Application

The analytical standards can also be used as follows:

• High-performance size exclusion chromatography (HPSEC) based determination of the molecular weight of a dextran synthesized by Leuconostoc citreum B-2, isolated from a fermentation product of pineapple
• Determination of molecular weight of polysaccharides obtained from four Auricularia species by high-performance liquid chromatography using a water-soluble gel column
• Identification of molecular weight of a water-soluble polysaccharide isolated by anion exchange chromatography from the dried leaves of C. paliurus by gel permeation chromatography (GPC)
• Gel permeation chromatography (GPC) based molecular weight measurement of a dextran produced by two strains of Leuconostoc mesenteroides
• Estimation of molecular weight of a water-soluble polysaccharide obtained from thinned-young apple by high-performance size exclusion chromatography (HPSEC)

Other Notes

Set enthält 10 verschiedene Dextran Standards à 500 mg mit M_p ~1100 (Kat.-Nr. 31416), ~4400 (Kat.-Nr. 31417), ~10000 (Kat.-Nr. 31418), ~20000 (Kat.-Nr. 31419), ~45000 (Kat.-Nr. 31420), ~65000 (Kat.-Nr. 31421), ~125000 (Kat.-Nr. 31422), ~195000 (Kat.-Nr. 31423), ~275000 (Kat.-Nr. 31424), ~400000 (Kat.-Nr. 31425); Die Komponenten können auch einzeln unter den angeführten Produktnummern bestellt werden.

Sicherheitshinweise

• Lagerklasse: 11 - Combustible Solids
• ppe: Eyeshields, Gloves, type N95 (US)
• flash_point_f: Not applicable
• flash_point_c: Not applicable