Description

α-D-(+)-Melibiose is a naturally occurring disaccharide sugar composed of galactose and glucose, widely utilized as a high-purity biochemical reagent and research standard. Its specific stereochemistry makes it a valuable tool for studying enzyme specificity, carbohydrate metabolism, and glycobiology. This product is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and food science industries who require a reliable and well-characterized carbohydrate standard for analytical and synthetic applications.

Application

• Biochemical Research: Used as a standard and substrate in enzymatic assays, particularly for α-galactosidase and other glycosidase studies.
• Pharmaceutical Development: Serves as a chiral building block or intermediate in the synthesis of complex glycoconjugates and potential therapeutic agents.
• Food & Beverage Analysis: Employed as a reference standard in HPLC and other chromatographic methods for analyzing sugar composition in food products.
• Microbiology & Fermentation: Acts as a selective carbon source in microbial culture media for studying bacterial metabolism and growth.
• Diagnostic Reagents: Used in the formulation of diagnostic kits for metabolic disorders related to carbohydrate digestion.
• Glycobiology Studies: Critical for investigating cell-surface recognition, carbohydrate-protein interactions, and biosynthetic pathways.

Basic Information

Product Name	α-D-(+)-Melibiose
CAS No.	13299-20-2
Molecular Formula	C₁₂H₂₂O₁₁
Molecular Weight	342.30 g/mol
Synonyms	6-O-α-D-Galactopyranosyl-D-glucose; D-(+)-Melibiose; α-Melibiose; Melibiose; α-D-Galactopyranosyl-(1→6)-D-glucose; 6-O-α-D-Galactosyl-D-glucose; (2R,3R,4S,5R,6R)-2-(Hydroxymethyl)-6-[(2R,3S,4R,5R,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol
EINECS	Contact for details

Quality Control

Our α-D-(+)-Melibiose is produced and tested under a strict quality management system to ensure batch-to-batch consistency and high purity suitable for research and industrial applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identification, and impurity profiles. We adhere to relevant industry guidelines to support your compliance needs in regulated environments.

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); ensure the container is kept tightly sealed in a low-humidity environment to prevent absorption of water.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Specific Rotation [α]²⁰D	+129° to +135° (c=4 in H₂O)
Loss on Drying	≤ 1.0%
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.