Description

3-o-(α-D-Galactopyranosyl)-D-Galactose is a specific disaccharide sugar derivative, also known as a galactobiose, where two galactose units are linked. This compound is of significant interest in biochemical and pharmaceutical research due to its role as a structural motif in complex carbohydrates and glycoconjugates. It serves as a critical intermediate and reference standard for scientists and manufacturers in the fields of glycobiology, diagnostic reagent development, and nutraceutical research.

Application

• Biochemical Research: Used as a standard and intermediate in the study of carbohydrate metabolism, enzyme specificity (e.g., galactosidases), and glycoprotein synthesis.
• Diagnostic Reagents: Serves as a key component or calibrant in the development of enzymatic assay kits for metabolic disorder screening.
• Pharmaceutical Development: Acts as a building block for the synthesis of more complex oligosaccharides with potential therapeutic applications.
• Nutraceutical & Food Science: Investigated for its prebiotic potential and role in synthesizing human milk oligosaccharide (HMO) analogs.
• Academic & Industrial R&D: Essential reference material for analytical method development (HPLC, MS) and quality control in carbohydrate chemistry.

Basic Information

Product Name	3-o-(α-D-Galactopyranosyl)-D-Galactose
CAS No.	5188-48-7
Molecular Formula	C12H22O11
Molecular Weight	342.30 g/mol
Synonyms	3-O-α-D-Galactopyranosyl-D-galactose; α-D-Galactopyranosyl-(1→3)-D-galactose; 3-α-D-Galactosyl-D-galactose; Galactobiose; O-α-D-Galactopyranosyl-(1→3)-D-galactopyranose; 1,3-Di-O-α-D-galactopyranosyl-D-galactitol precursor; D-Galactose, 3-O-α-D-galactopyranosyl-
EINECS	Contact for details

Quality Control

We supply high-purity grades suitable for research and development. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request. We can provide material tailored to specific project requirements, including analytical reference standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a desiccated environment to maintain stability and purity. For long-term storage, consider using inert atmosphere packaging.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Specific Rotation	Contact for details
Heavy Metals	< 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.