Skip to Content
Merck
CN

I6758

IPTG

≥99% (TLC), ≤0.1% Dioxane

Synonym(s):

Isopropyl β-D-1-thiogalactopyranoside, IPTG, Isopropyl β-D-thiogalactoside

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C9H18O5S
CAS Number:
367-93-1
Molecular Weight:
238.30
UNSPSC Code:
12352201
NACRES:
NA.31
PubChem Substance ID:
24896093
EC Number:
206-703-0
Beilstein/REAXYS Number:
4631
MDL number:
MFCD00063273

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

IPTG, ≥99% (TLC), ≤0.1% Dioxane

InChI key

BPHPUYQFMNQIOC-NXRLNHOXSA-N

InChI

1S/C9H18O5S/c1-4(2)15-9-8(13)7(12)6(11)5(3-10)14-9/h4-13H,3H2,1-2H3/t5-,6+,7+,8-,9+/m1/s1

SMILES string

CC(C)S[C@@H]1OC(CO)[C@H](O)C(O)[C@H]1O

biological source

synthetic

description

non-ionic

assay

≥99% (TLC)

form

powder

technique(s)

thin layer chromatography (TLC): suitable

impurities

≤0.1% Dioxane

color

white to off-white

useful pH range

5-7 (50 g/L)

mp

105  °C ((221 °F))

solubility

water: 0.05 g/L, clear

application(s)

cell analysis
life science and biopharma

storage temp.

2-8°C

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

IPTG has been used:

  • in the induction of protein expression in Lactobacillus reuteri GroEL and mutants
  • in the induction of protein expression in Escherichia coli
IPTG is commonly used in cloning procedures that require induction of β-galactosidase activity. It is used in conjunction with X-Gal or Bluo-Gal in blue-white selection of recombinant bacterial colonies that induce expression of the lac operon in Escherichia coli. IPTG functions by binding to the lacI repressor and altering its conformation, which prevents the repression of the β-galactosidase coding gene lacZ.

Biochem/physiol Actions

IPTG is a non-metabolizable analog of allolactose. It acts as an inducer that regulates the transcriptional activity of the lac promoter, a promoter that is used for the expression of the protein in E.coli.

General description

Isopropyl β-D-Thiogalactopyranoside (IPTG) is a molecular biology reagent used to induce gene expression in bacterial systems. It mimics lactose, binding to the lac repressor protein, leading to gene activation. IPTG is crucial for studying gene regulation, protein expression, and recombinant protein production, providing valuable insights into cellular and molecular biology research.

Other Notes

For additional information on our range of Biochemicals, please complete this form.
Non-metabolizable galactose analog.
To gain a comprehensive understanding of our extensive range of Monosaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Preparation Note

A stock solution (0.1 M) is prepared by dissolving IPTG in water with subsequent sterile filtration of the solution. The final concentration of IPTG in indicator plates should be 0.2 mM.

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H350

Hazard Classifications

Carc. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000502652
0000502652
0000502654
0000502654
0000502650

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

A self-inducible heterologous protein expression system in Escherichia coli
Briand L, et al.
Scientific Reports, 6 , 33037 -33037 (2016)
Bin Jiang et al.
Molecular metabolism, 59, 101462-101462 (2022-03-06)
Chronic inflammatory response plays a prominent role in obesity-related nonalcoholic fatty liver disease (NAFLD). However, the intrahepatic triggering mechanism of inflammation remains obscure. This study aimed to elucidate the role of serum amyloid A1 (SAA1), an acute-phase response protein, in
Alexandre M M Dias et al.
Journal of gastroenterology, 56(5), 442-455 (2021-03-31)
We previously showed that supernatants of Lactobacillus biofilms induced an anti-inflammatory response by affecting the secretion of macrophage-derived cytokines, which was abrogated upon immunodepletion of the stress protein GroEL. We purified GroEL from L. reuteri and analysed its anti-inflammatory properties
Prajna Jena et al.
Nanoscale, 12(6), 3731-3749 (2020-01-30)
The actin cytoskeleton is required for the maintenance of the cell shape and viability of bacteria. It remains unknown to which extent nanoparticles (NPs) can orchestrate the mechanical instability by disrupting the cytoskeletal network in bacterial cells. Our work demonstrates
João Paulo Fabi et al.
PloS one, 9(8), e105685-e105685 (2014-08-28)
Papaya (Carica papaya L.) is a climacteric fleshy fruit that undergoes dramatic changes during ripening, most noticeably a severe pulp softening. However, little is known regarding the genetics of the cell wall metabolism in papayas. The present work describes the
View All Related Papers

Articles

Bacterial Transformation Protocols

General protocols for growth of competent cells and their transformation (uptake of DNA).

细菌转化实验方案

感受态细胞生长及其转化（吸收DNA）的通用实验方案。

Protocols

Microbial Growth Protocols

General protocols for growth of competent cells in microbial medium.

微生物生长实验方案

在从小型培养到发酵级的不同规模下培养大肠杆菌。包括了用于启动起始培养物、悬浮细胞、单一培养物和平板噬菌体M13的实验方案。

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service