Used as a calibration standard in size-exclusion chromatography (SEC) and gel permeation chromatography (GPC) to determine the molecular weight distribution of polysaccharides and other macromolecules. Provides accurate and reproducible reference points for column calibration, ensuring reliable analysis of polymer size and polydispersity. Commonly applied in pharmaceutical, biomedical, and food industries for quality control and research involving dextran-based products.