Description

Isopropyl-β-Galactopyranoside (CAS NO 55508-29-7) is a specialized synthetic glycoside widely used as a potent and specific inducer of gene expression in molecular biology and biotechnology. Its core value lies in its ability to activate the lac operon in E. coli and other expression systems without being metabolized, enabling precise control over recombinant protein production. This compound is essential for researchers and manufacturers in the biopharmaceutical, academic research, and industrial enzyme sectors who require high-purity, reliable biochemical reagents for protein expression studies and production.

Application

• Recombinant Protein Expression: As a key inducer for the lac and tac promoter systems in bacterial cultures, particularly E. coli.
• Molecular Biology Research: Used in laboratory studies to control the timing and level of gene expression for functional analysis.
• Biopharmaceutical Development: Critical in the upstream process development for the production of therapeutic proteins, antibodies, and vaccines.
• Enzyme Manufacturing: Employed in the industrial-scale fermentation processes to induce the production of specific industrial enzymes.
• Diagnostic Reagent Production: Used in the controlled synthesis of proteins and enzymes for diagnostic kits and assays.
• Cell Biology Studies: Facilitates inducible expression systems in various cell-based assays and functional genomics.

Basic Information

Product Name	Isopropyl-β-Galactopyranoside
CAS No.	55508-29-7
Molecular Formula	C9H18O6
Molecular Weight	222.24 g/mol
Synonyms	IPTG; Isopropyl β-D-1-thiogalactopyranoside; Isopropyl-β-D-thiogalactoside; Isopropylthiogalactoside; β-D-Isopropylthiogalactopyranoside; 1-Methylethyl β-D-galactopyranoside; Galactopyranoside, isopropyl β-; 2-Propan-2-yloxy-6-(hydroxymethyl)oxane-3,4,5-triol
EINECS	Contact for details

Quality Control

Our Isopropyl-β-Galactopyranoside is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity, suitable for sensitive research and production applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and specific tests. We can supply grades compliant with in-house specifications tailored for molecular biology use, and our quality commitment aligns with the standards expected in GMP/GLP environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C for long-term stability. This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
Melting Point	108°C - 112°C
Specific Rotation	-30° to -35° (c=1 in H2O)
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 10 ppm
Bacterial Endotoxins	Contact for details
Biological Activity	Induction test: Conforms

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