Description

.Beta.-D-Galactopyranoside, 2-Hydroxyethyl is a specialized glycoside derivative, primarily known as a chromogenic substrate for enzymatic assays. This compound matters for its high specificity and sensitivity in detecting and quantifying β-galactosidase activity, a critical enzyme in molecular biology and diagnostic applications. It is essential for researchers and manufacturers in the life sciences, pharmaceutical development, and diagnostic kit production who require reliable, high-purity biochemical reagents.

Application

• Enzymatic Substrate for β-Galactosidase: Used as a chromogenic substrate in biochemical assays to detect and measure β-galactosidase activity in reporter gene systems (e.g., lacZ gene).
• Molecular Biology Research: A key reagent in cloning, gene expression studies, and microbial genetics for screening and selection processes.
• Diagnostic Kit Manufacturing: Incorporated into kits for clinical diagnostics and microbiological testing to identify specific bacterial enzymes.
• Pharmaceutical R&D: Utilized in drug discovery platforms for high-throughput screening of compounds that modulate enzyme activity.
• Biochemical Reagent: Serves as a standard or reference material in quality control laboratories for enzyme characterization.
• Food & Beverage Analysis: Potential use in enzymatic methods for detecting microbial contamination or specific enzymatic processes.

Basic Information

Product Name	.Beta.-D-Galactopyranoside, 2-Hydroxyethyl
CAS No.	7420-22-6
Molecular Formula	C8H16O7
Molecular Weight	224.21 g/mol
Synonyms	2-Hydroxyethyl β-D-galactopyranoside; β-D-Galactopyranosyl-(1→1)-2-hydroxyethane; 2-(β-D-Galactopyranosyloxy)ethanol; Gal-β-(1→1)-EG; Ethylene glycol β-D-galactoside; Hydroxyethyl-β-D-galactoside; ONPG analog (hydroxyethyl); β-Galactosyl ethylene glycol
EINECS	231-047-3

Quality Control

Our .Beta.-D-Galactopyranoside, 2-Hydroxyethyl is produced under a quality management system and undergoes rigorous analytical testing to ensure batch-to-batch consistency and high purity suitable for research and diagnostic applications. Certificates of Analysis (COA) detailing identity, purity, and specific tests are available upon request. While not typically USP/EP grade, specifications can be aligned with customer requirements for critical applications.

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 sealed tightly after each use to prevent absorption of atmospheric moisture, which can affect stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Melting Point	Contact for details
Specific Rotation	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents	Complies with ICH guidelines

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