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 molecular weight measurements due to its well-characterized polymeric structure. Commonly applied in pharmaceutical and biomedical research for validating analytical instruments and methods, especially in the development and quality control of biopolymers and complex carbohydrates. Also utilized in studies involving viscosity, diffusion, and hydrodynamic properties of macromolecules in solution.