Beschrijving
Dextran 40 is een polysaccharide van biochemische kwaliteit bestemd voor laboratorium- en onderzoeksgebruik. Het is geïdentificeerd met CAS 9004-54-0 en EG-nr. 232-677-5, met de herhalende empirische formule (C₆H₁₀O₅)ₙ en een molaire massa van ongeveer 40.000 g/mol. Dextranen in dit molecuulgewichtsbereik worden veelvuldig toegepast bij biochemische scheidingen, viscositeitsstudies van oplossingen, macromoleculaire standaarden en aanverwante experimentele systemen. Duidelijke identiteitsparameters en een gedefinieerde nominale molaire massa helpen laboratoria om het polymeer consistent te specificeren in protocollen. Geschikt voor biochemische omgevingen die een goed gekarakteriseerde dextraanfractie vereisen, ondersteunt deze kwaliteit de reproduceerbare bereiding van werkoplossingen zonder extra toevoegingen of niet-geverifieerde prestatieclaims.
Dit artikel hoort thuis in Koolhydraten & suikers, in Biochemicaliën & reagentia.
Belangrijkste kenmerken
- Uiterlijk: wit tot gebroken wit poeder
- Molecuulmassa: 35000-45000
- pH-waarde (10 % oplossing): 4.5-7.0
- Specifieke draaiing [α]20D (2 % in H2O): +195° tot +201°
- Droogverlies: ≤7.0 %
- CAS-nummer: 9004-54-0
- Verpakkingsgrootten: 10 g, 100 g, 250 g, 500 g
- EG-nr.: 232-677-5
- Empirische formule: (C₆H₁₀O₅)ₙ
- Molaire massa: ~40.000 g/mol
- Technisch informatieblad:
- Veiligheidsinformatieblad:
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Dextran 40, voor biochemie, 10 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Carbohydrates & sugars, inside Biochemicals & reagents, in Microbiologische media.
A carbohydrate reagent is a sugar or a derivative, specified by identity, anomer where it matters, and purity. Hydrate and anhydrous forms change the mass. A culture-grade sugar and an analytical standard of the same name are different bottles.
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