CAS 367-93-1

Isopropyl β-D-thiogalactopyranoside

Description:

Isopropyl β-D-thiogalactopyranoside (IPTG) is a synthetic compound commonly used in molecular biology as an inducer of gene expression. It is a galactoside, specifically a thiogalactoside, which means it contains a sulfur atom in place of the oxygen in the galactose moiety. IPTG is structurally similar to lactose and is recognized by the lac operon system in bacteria, particularly Escherichia coli, where it binds to the lac repressor, leading to the activation of genes under the control of the lac promoter. This property makes IPTG a valuable tool for researchers in protein expression studies. The compound is typically supplied as a white crystalline powder and is soluble in water, making it easy to prepare solutions for experimental use. IPTG is stable under a range of conditions, although it should be stored in a cool, dry place to maintain its integrity. Its use is widespread in cloning and recombinant DNA technology, facilitating the production of proteins for research and therapeutic applications.

Formula: C₉H₁₈O₅S

InChI: 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

InChI key: InChIKey=BPHPUYQFMNQIOC-NXRLNHOXSA-N

SMILES: S(C(C)C)[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O

Synonyms:

• 1-Isopropylthio-β-D-galactopyranoside
• 1-Methylethyl 1-thio-β-<span class="text-smallcaps">D</span>-galactopyranoside
• Galactopyranoside, isopropyl 1-thio-
• Galactopyranoside, isopropyl 1-thio-, β-<span class="text-smallcaps">D</span>-
• Galactopyranoside, isopropyl 1-thio-, β-D-
• Iptg
• Isopropyl 1-thio-β-<span class="text-smallcaps">D</span>-galactopyranoside
• Isopropyl 1-thio-β-<span class="text-smallcaps">D</span>-galactoside
• Isopropyl 1-thio-β-D-galactopyranoside
• Isopropyl 1-thio-β-D-galactoside
• Isopropyl thio-β-<span class="text-smallcaps">D</span>-galactopyranoside
• Isopropyl thio-β-<span class="text-smallcaps">D</span>-galactoside
• Isopropyl thio-β-D-galactopyranoside
• Isopropyl thio-β-D-galactoside
• Isopropyl β-<span class="text-smallcaps">D</span>-thiogalactopyranoside
• Isopropyl β-D-thiogalactopyranoside
• Isopropyl β-thiogalactopyranoside
• Isopropyl β-thiogalactoside
• Isopropyl-β-<span class="text-smallcaps">D</span>-1-thiogalactopyranoside
• Isopropyl-β-D-thiogalaktopyranosid
• Thioisopropyl β-<span class="text-smallcaps">D</span>-galactopyranoside
• Thioisopropyl β-D-galactopyranoside
• isopropil-β-D-tiogalactopiranosida
• β-<span class="text-smallcaps">D</span>-Galactopyranoside, 1-methylethyl 1-thio-
• Isopropylthio-beta-Thiogalactosidase
• Isopropyl-beta-D-thiogalactoside
• β-D-Galactopyranoside, 1-methylethyl 1-thio-
• Isopropyl β-D-1 Thiogalactopyranoside
• Isopropyl β-D-thiogalactoside
• Isopropyl-1-thio-beta-D-galactopyranoside
• HEMIDIOXANE ADDUCT
• Isopropylthio-beta-galactoside
• Isopropyl thiogalactoside
• 1-Methylethyl 1-thio-β-D-galactopyranoside
• Isopropylthio-B-thiogalactopyranoside
• Isopropyl-beta-D-thiogalactopyranoside, Dioxane Free
• 1-methylethyl 1-thio-D-galactopyranoside

Isopropyl-β-D-thiogalactopyranoside, <5ppm dioxane

CAS: 367-93-1

IPTG is a gratuitous beta-D-galactosidase inducer. In Escherichia coli IPTG functions by binding to the lac repressor and altering its conformation. This inactivation prevents the repressor binding to the operator of the lac operon and thus the repression of the beta-galactosidase coding gene lacZ. IPTG is a commonly used reagent in cloning procedures that require induction of beta-galactosidase activity and is used in conjunction with X-Gal or Lapis-β-D-Gal in blue-white color selection of recombinant bacterial colonies.

Formula: C₉H₁₈O₅S

Purity: Min. 99.0 Area-%

Molecular weight: 238.30 g/mol

Ref: 3D-I-8000

Isopropyl-β-D-thiogalactopyranoside, approx. 15.0% dioxane

CAS: 367-93-1

A non-metabolizable allolactose analogue, widely used in molecular biology for overexpression of recombinant proteins from inducible systems under the control of lac promoter. IPTG binds to the LacI repressor and causes its release from the lac operator, allowing gene expression to take place. Present in vectors of pGEX, pGEM-T, pET, pRSET, pMAL class and others.

Formula: C₉H₁₈O₅S

Molecular weight: 238.30 g/mol

Ref: 3D-I-8050

Isopropyl-β-D-thiogalactopyranoside, <5ppm dioxane, plant origin (ex peach gum)

CAS: 367-93-1

A non-metabolizable allolactose analogue, widely used in molecular biology for overexpression of recombinant proteins from inducible systems under the control of lac promoter. IPTG binds to the LacI repressor and causes its release from the lac operator, allowing gene expression to take place. Present in vectors of pGEX, pGEM-T, pET, pRSET, pMAL class and others.

Formula: C₉H₁₈O₅S

Purity: Min. 99.0 Area-%

Molecular weight: 238.30 g/mol

Ref: 3D-I-8070

Isopropyl-B-D-Thiogalactopyranoside (IPTG) (dioxan-free) for MB, 99%

CAS: 367-93-1

Formula: C₉H₁₈O₅S

Purity: min. 99%

Color and Shape: White, Crystalline powder

Molecular weight: 238.31

Ref: SR-67208

Isopropyl-B-D-Thiogalactopyranoside (IPTG) (dioxan free), 99%

CAS: 367-93-1

Formula: C₉H₁₈O₅S

Purity: min. 99%

Color and Shape: White, Crystalline powder

Molecular weight: 238.31

Ref: SR-54110

IPTG, 1M aqueous solution

CAS: 367-93-1

A non-metabolizable allolactose analogue, widely used in molecular biology for overexpression of recombinant proteins from inducible systems under the control of lac promoter. IPTG binds to the LacI repressor and causes its release from the lac operator, allowing gene expression to take place. Present in vectors of pGEX, pGEM-T, pET, pRSET, pMAL class and others.

Formula: C₉H₁₈O₅S

Purity: Min. 95%

Color and Shape: Clear Liquid

Molecular weight: 238.3 g/mol

Ref: 3D-EI184219