3-Fucosyllactose (3-FL)

3-Fucosyllactose (3-FL) is one of the most prominent fucosylated human milk oligosaccharides (HMOs) naturally present in breast milk. Unique among HMOs, the concentration of 3-FL increases during the course of lactation, offering continued support for infant health in the later stages of breastfeeding. As a trisaccharide composed of galactose (Gal), glucose (Glc), and fucose (Fuc), 3-FL plays an essential role in supporting neonatal immune development, shaping gut microbiota, and enhancing brain maturation.

Due to its well-documented health benefits, 3-FL is increasingly incorporated into infant formula and dietary supplements. Alfa Chemistry offers high-purity, research-grade 3-fucosyllactose suitable for nutritional, functional food, and pharmaceutical applications.

The structural formula of 3-fucosyllactose (3-FL)

Require

Product Highlights

Supports immune function, brain development, and microbiota balance
Functions synergistically with other HMOs such as 2'-FL
Suitable for use in infant nutrition, gut health formulations, and functional food products
Produced via enzymatic synthesis for high purity and batch consistency

Specifications

Item	3-Fucosyllactose (3-FL)
Catalog number	DS41312474
CAS number	41312-47-4
Glycan structure	Galβ1-4(Fucα1-3)Glc
Molecular formula	C18H32O15
Molecular weight	488.44 g/mol

Nutritional Benefits

3-FL delivers multiple health-promoting functions backed by clinical and preclinical research:

Prebiotic Activity: Selectively stimulates the growth of beneficial bifidobacteria, promoting gut health and microbial balance.
Immune Modulation: Enhances immune responses, helping to reduce the risk of infection, particularly in neonates.
Pathogen Defense: Inhibits pathogen adhesion to epithelial cells, working in complement to 2'-FL to provide broader antimicrobial coverage.
Cognitive Support: Contributes to early brain development and neural connectivity.

Why Choose Alfa Chemistry?

With decades of experience in the dietary supplement industry, Alfa Chemistry provides premium, science-backed ingredients to help brands innovate with confidence. Our 3-fucosyllactose is manufactured to the highest quality standards, ensuring purity, safety, and reliability across all applications. Whether you're formulating infant nutrition or expanding into gut-health-focused products, Alfa Chemistry is your trusted source for next-generation HMOs.

Our products and services are for research use only and cannot be used for any clinical purposes.

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