Description

D-Melibiose puriss. 99% for bacteriology is a high-purity, analytical-grade carbohydrate specifically refined for demanding microbiological and biochemical research. This compound is essential for studies involving bacterial metabolism, carbohydrate utilization, and as a selective substrate in diagnostic media formulation. It is primarily utilized by research institutions, pharmaceutical R&D departments, and industrial biotechnology laboratories requiring precise and reliable biochemical reagents.

Application

• Bacteriological Research & Media Formulation: Used as a defined carbon source in selective and differential culture media for the identification and study of specific bacterial species.
• Enzymatic & Biochemical Assays: Serves as a specific substrate for enzymes like α-galactosidase (melibiase) in kinetic studies and diagnostic enzyme assays.
• Microbial Metabolism Studies: Employed to investigate bacterial carbohydrate fermentation pathways and energy metabolism.
• Pharmaceutical R&D: Used in the development and testing of novel antimicrobial agents and probiotics.
• Food & Beverage Microbiology: Applied in quality control labs to test for the presence of specific microorganisms in products.
• Reference Standard: Acts as a high-purity analytical standard for chromatography (HPLC, GC) and spectroscopy in quality control laboratories.

Basic Information

Item	Details
Product Name	D-Melibiose puriss. 99% for bacteriology
CAS No.	6009-10-7
Molecular Formula	C₁₂H₂₂O₁₁
Molecular Weight	342.30 g/mol
Synonyms	6-O-α-D-Galactopyranosyl-D-glucose; α-D-Galactosyl-(1→6)-D-glucose; Melibiose; D-(+)-Melibiose; α-Melibiose; 6-α-D-Galactosido-D-glucose; Sucrose isomer
EINECS	227-881-1

Quality Control

Our D-Melibiose puriss. 99% for bacteriology is manufactured and tested to meet the stringent requirements of research and analytical applications. Each batch undergoes rigorous quality testing, including identity confirmation, purity assay, and specific tests for relevant impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided to ensure full traceability and compliance with your quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after use to prevent moisture absorption, which can affect stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 99.0% (anhydrous basis)
Specific Optical Rotation [α]²⁰D	+129° to +133° (c=4 in H₂O)
Water (Karl Fischer)	≤ 1.0 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm
Microbial Enumeration	Contact for details

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