Description

2-o-(A-D-Galactopyranosyl)-D-Glucopyranose is a high-purity disaccharide sugar derivative, also known as a specific glycosidic isomer of lactose. This compound is valued for its role as a precise biochemical building block and reference standard in advanced research and development. It is primarily required by industries focused on carbohydrate chemistry, pharmaceutical development, and specialized nutritional science for creating novel compounds and analytical calibration.

Application

• Biochemical Research & Reference Standard: Serves as a critical analytical standard for chromatography (HPLC, GC) and spectroscopy to identify and quantify related saccharides.
• Pharmaceutical Intermediate: Used in the synthesis of specialized drug candidates, prodrugs, and targeted delivery systems where specific glycosylation is required.
• Enzymology Studies: Acts as a specific substrate for studying the activity, kinetics, and inhibition of glycosidase and glycosyltransferase enzymes.
• Nutritional Science Research: Employed in metabolic studies and the development of specialized nutritional products targeting gut microbiota and carbohydrate digestion.
• Glycobiology & Glycochemistry: Essential for synthesizing complex oligosaccharides, glycoconjugates, and probes for investigating cell-surface interactions and signaling.
• Diagnostic Reagent Formulation: Used as a component in the manufacture of diagnostic kits and assays for detecting enzymatic deficiencies or metabolic disorders.

Basic Information

Product Name	2-o-(A-D-Galactopyranosyl)-D-Glucopyranose
CAS No.	7286-57-9
Molecular Formula	C12H22O11
Molecular Weight	342.30 g/mol
Synonyms	4-O-β-D-Galactopyranosyl-D-glucopyranose; β-Lactose (specific isomer); Lactose (isomeric form); 4-O-β-D-Galactopyranosyl-D-glucose; D-Glucose, 4-O-β-D-galactopyranosyl-; 4-β-D-Galactosido-D-glucose; Gal(β1-4)Glc; β-D-Galactopyranosyl-(1→4)-D-glucopyranose
EINECS	Contact for details

Quality Control

Our 2-o-(A-D-Galactopyranosyl)-D-Glucopyranose is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the stringent requirements for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); ensure the container is kept sealed in a low-humidity environment to maintain stability and prevent clumping or decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Specific Optical Rotation	Contact for details
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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