3'-Sialyllactose Sodium Salt is widely used in the field of nutrition and health sciences, particularly in the development of infant formula. It mimics the oligosaccharides found in human breast milk, which are crucial for supporting the growth of beneficial gut bacteria in infants. This compound plays a significant role in enhancing the immune system and improving gut health, making it a valuable ingredient in products aimed at promoting early-life nutrition.

In addition to its nutritional applications, 3'-Sialyllactose Sodium Salt is also utilized in research focused on understanding the interactions between carbohydrates and pathogens. It serves as a model compound to study how sialylated glycans influence bacterial adhesion and infection processes. This research can lead to the development of new therapeutic strategies to combat bacterial infections.

Furthermore, this compound is used in the production of functional foods and dietary supplements designed to support cognitive health. Its presence in these products is linked to potential benefits in brain development and cognitive function, particularly in early childhood.

Overall, 3'-Sialyllactose Sodium Salt is a versatile compound with significant applications in nutrition, health, and biomedical research.