Description

o-β-D-Galactopyranosyl-(1-4)-o-α-D-Glucopyranosyl-(1-4)-D-Glucose is a defined oligosaccharide, specifically a linear trisaccharide composed of galactose and glucose units. This high-purity carbohydrate reference standard is critical for analytical research, method development, and quality control in life sciences. It serves as an essential tool for researchers and manufacturers in the pharmaceutical, nutraceutical, and advanced food ingredient sectors who require precise molecular standards for chromatographic analysis and enzymatic studies.

Application

• Chromatographic Reference Standard: Used as a high-purity standard for HPLC, LC-MS, and GC-MS analysis to identify and quantify oligosaccharides in complex mixtures.
• Enzymatic Substrate Research: Serves as a specific substrate for studying the activity and kinetics of glycosidases, galactosidases, and transglycosylase enzymes.
• Pharmaceutical Excipient Development: Investigated for its potential functional properties in drug formulation, such as stabilizers or carriers.
• Nutraceutical & Functional Food Analysis: Employed in the quality control and verification of prebiotic formulations, human milk oligosaccharide (HMO) analogs, and other specialty carbohydrates.
• Biochemical Reagent: Utilized in metabolic pathway studies and as a building block in the synthesis of more complex glycoconjugates.
• Academic & Institutional Research: Provides a defined structure for studies in glycobiology, carbohydrate chemistry, and nutritional science.

Basic Information

Product Name	o-β-D-Galactopyranosyl-(1-4)-o-α-D-Glucopyranosyl-(1-4)-D-Glucose
CAS No.	143444-32-0
Molecular Formula	C18H32O16
Molecular Weight	504.44 g/mol
Synonyms	4'-Galactosyllactose; β-D-Galactopyranosyl-(1→4)-α-D-glucopyranosyl-(1→4)-D-glucose; O-β-D-Galactopyranosyl-(1→4)-O-α-D-glucopyranosyl-(1→4)-D-glucopyranose; Trisaccharide Galβ1-4Glcα1-4Glc; 4'-GL; Gal(β1-4)Glc(α1-4)Glc
EINECS	Contact for details

Quality Control

Every batch of our high-purity carbohydrate standards is manufactured and tested under strict quality management protocols. We provide comprehensive analytical data to ensure identity, purity, and consistency for critical research applications. A detailed Certificate of Analysis (COA) is supplied with each product, reporting results from advanced techniques including HPLC, NMR, and MS. Our quality systems support compliance with relevant research and development 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 product is hygroscopic (moisture-sensitive). For long-term storage, consider desiccant in the storage environment to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Specific Optical Rotation	Contact for details
Heavy Metals	< 10 ppm
Residue on Ignition	< 0.5%

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