Description
Specifications Table
Product Name – Dextran 40 For Molecular Biology-MW-35000-45000
Quantity/Pack Size – 25 gm
Form – White powder
Grade – Molecular Biology Grade
Application – Cell Cryopreservation, Osmotic Support, Protein Stabilization, Column Chromatography
Product Overview
Dextran 40 is a highly purified, fractionated polysaccharide derived from Leuconostoc mesenteroides, specifically tailored for demanding molecular biology applications. With a precisely controlled molecular weight range of 35,000 to 45,000 Daltons, this grade ensures consistent performance and reliable results in sensitive experiments. Its inert nature and excellent solubility in aqueous solutions make it an indispensable component in various laboratory protocols. Dextran 40 acts as an effective osmotic agent, providing essential cellular protection during cryopreservation processes, thereby minimizing cell damage and enhancing viability upon thawing. Beyond cryoprotection, it is widely utilized to stabilize enzymes and proteins, extending their shelf life and maintaining their functional integrity during storage and experimental procedures. Furthermore, its unique properties lend themselves well to various separation techniques, including gel filtration chromatography, where it can aid in the precise fractionation of macromolecules based on size. Researchers and laboratory professionals rely on the consistent quality of Dextran 40 for preparing buffers, media, and for use in advanced cell and molecular studies, ensuring high standards of experimental accuracy and reproducibility. This product represents a commitment to providing high-quality reagents that support rigorous scientific inquiry.
FAQs
1. What is the primary role of Dextran 40 in molecular biology?
Dextran 40 is primarily used as an osmotic agent and cryoprotectant in molecular biology to protect cells and tissues during freezing and thawing, and to stabilize proteins and enzymes.
2. How should Dextran 40 be stored to maintain its integrity?
It is recommended to store Dextran 40 in a cool, dry place, typically at room temperature (15-30°C), in its original sealed container to prevent moisture absorption.
3. Is this Dextran 40 suitable for cell culture applications?
Yes, this Molecular Biology Grade Dextran 40 is suitable for various cell culture applications, especially where osmotic regulation or cryoprotection is required for cell viability.
4. What is the molecular weight range of this specific Dextran 40?
This Dextran 40 product has a molecular weight range between 35,000 and 45,000 Daltons, ensuring consistent performance for applications requiring this specific size fraction.
5. Can Dextran 40 be autoclaved for sterilization?
While Dextran 40 solutions can generally withstand autoclaving, prolonged exposure to high heat might cause some degradation. Filter sterilization is often preferred for solutions to maintain optimal integrity.
