sucrose

sucrose (CAS No.: 57-50-1) is a nonreducing disaccharide composed of glucose and fructose linked through their anomeric centers, widely utilized as a fundamental carbohydrate substrate in biochemical and metabolic research. As a naturally abundant plant-derived sugar, sucrose plays a central role in cellular energy metabolism and is frequently employed to investigate carbohydrate digestion, transport, and regulatory mechanisms governing glucose and fructose utilization. Although it does not directly bind specific molecular targets in the manner of small-molecule inhibitors or receptor ligands, sucrose influences multiple metabolic pathways, including glycolysis, gluconeogenesis, and insulin-related signaling cascades, through its hydrolysis products. In experimental systems, sucrose is commonly used to model diet-induced metabolic alterations, with studies in animal models demonstrating that dietary context can significantly modulate sucrose preference and intake, particularly in obesity-prone and obesity-resistant phenotypes under varying energy conditions. In vitro and in vivo applications typically involve concentration-dependent effects spanning millimolar ranges, reflecting its role as a nutrient substrate rather than a high-affinity bioactive compound. Sucrose is broadly applied in studies of metabolic disorders, feeding behavior, and energy homeostasis, as well as in assay development and osmotic regulation, with experimental concentrations or dosing regimens adjusted according to specific study designs and research objectives.