Description

α-D-Galactopyranosiduronic Acid, Methyl, Methyl Ester is a chemically defined derivative of galacturonic acid, a key building block in pectin polysaccharides. This high-purity reference standard is critical for analytical research, method development, and quality control in carbohydrate chemistry. It is primarily utilized by researchers and quality assurance professionals in the pharmaceutical, nutraceutical, and advanced material science industries to ensure accurate identification and quantification of complex carbohydrate structures.

Application

• Pharmaceutical Reference Standard: Used as a certified standard for the identification, assay, and impurity profiling of pectin-based drugs and excipients in compliance with pharmacopeial methods (e.g., USP, EP).
• Biochemical Research: Serves as a crucial substrate or intermediate in enzymatic studies, metabolic pathway analysis, and the synthesis of complex oligosaccharides and glycoconjugates.
• Analytical Chemistry: Employed in HPLC, LC-MS, and NMR for method validation, calibration, and as a system suitability check in carbohydrate analysis laboratories.
• Food Science & Quality Control: Acts as a high-purity standard for analyzing pectin content, structure, and degradation products in food products, beverages, and dietary supplements.
• Cosmetic Ingredient Analysis: Used to characterize and quantify pectin-derived ingredients in cosmetic formulations for quality and safety assurance.

Basic Information

Product Name	α-D-Galactopyranosiduronic Acid, Methyl, Methyl Ester
CAS No.	5155-54-4
Molecular Formula	C9H14O8
Molecular Weight	250.20 g/mol
Synonyms	Methyl (methyl α-D-galactopyranosid)uronate; Methyl α-D-galactopyranosiduronic acid methyl ester; α-D-Galactopyranosiduronic acid, methyl, methyl ester; Methyl α-D-galactosiduronate; Galacturonic acid methyl ester methyl glycoside; 1-O-Methyl-α-D-galactopyranuronic acid methyl ester
EINECS	Contact for details

Quality Control

Every batch of α-D-Galactopyranosiduronic Acid, Methyl, Methyl Ester is manufactured and tested under a strict quality management system. Our products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency meet the high standards required for research and analytical applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation by atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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