D-Sorbitol is a polyhydric sugar alcohol widely used as an osmotic stabilizer in biological and pharmaceutical research. D-Sorbitol exerts its biological activity primarily through inducing hyperosmotic stress conditions at the cellular level, thereby facilitating the study of osmoregulation mechanisms, stress-responsive signaling pathways, and protein stabilization strategies. As a chemical reagent, it serves as a substrate to analyze enzyme kinetics involving aldose reductase and sorbitol dehydrogenase in metabolic research protocols. Based on these properties, D-Sorbitol holds research potential in cell isolation, tissue culture, studies of the polyol pathway, diabetic complications, and energy balance assays.