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Thermo Scientific™ Isopropyl-beta-D-thiogalactopyranoside, 99%, for biochemistry, dioxane-free CAT: 10205731

SKU 90032154 CAS 367-93-1 C9H18O5S MW 238.30 Available on enquiry

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Isopropyl-beta-D-thiogalactopyranoside (IPTG) is a synthetic inductor used primarily in molecular biology to trigger gene expression in recombinant DNA experiments, particularly in bacterial systems like *E. coli*. It binds to the lac repressor, enabling transcription of cloned genes under the control of the lac promoter. This product is IPTG, 99% pure, dioxane-free, and suitable for biochemistry. CAS 367-93-1, molecular formula C9H18O5S, molecular weight 238.30. Store at 2–8°C. Signal word: Warning. Molekula supplies Thermo Scientific™ IPTG from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

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Overview

SKU: 90032154
CAS Number: 367-93-1
IUPAC Name: (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-propan-2-ylsulfanyloxane-3,4,5-triol
EC Number: 206-703-0
Molecular Formula: C9H18O5S
Molecular Weight: 238.30
Exact Mass: 238.0875
SMILES: CC(C)S[C@H]1[C@@H]([C@H]([C@H]([C@H](O1)CO)O)O)O
InChIKey: BPHPUYQFMNQIOC-NXRLNHOXSA-N
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
PubChem CID: 656894

Synonyms

(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-propan-2-ylsulfanyloxane-3,4,5-triol
beta-D-Galactopyranoside, 1-methylethyl 1-thio-
IPTG
Isopropyl 1-Thio-beta-D-galactopyranoside
Isopropyl beta-D-1-thiogalactopyranoside
isopropyl beta-thiogalactoside
ISOPROPYL THIOGALACTOSIDE
Isopropyl-beta-D-thiogalactopyranoside
Isopropyl-beta-D-thiogalactoside
Thiogalactoside, Isopropyl

Literature values

Published physical properties of the substance, not batch specifications.

Melting Point: 121 °C

Source: PubChem CID 656894 (DrugBank)

See all 2 other grades of CAS 367-93-1 →

Frequently asked questions

What is Thermo Scientific™ Isopropyl-beta-D-thiogalactopyranoside (IPTG) used for?

IPTG is primarily used as an inducer of lac operon in molecular biology to express recombinant proteins in bacteria, such as *E. coli*.

What is the chemical formula and molecular weight of IPTG?

The chemical formula is **C9H18O5S** with a molecular weight of **238.30 g/mol**.

How should I store Thermo Scientific™ IPTG?

Store at **2–8°C** in a cool, dry place, away from direct light and moisture. Avoid repeated freeze-thaw cycles.

What grade of IPTG is available, and is it suitable for biochemistry applications?

This product is **99% pure, dioxane-free**, and specifically formulated for **biochemistry**, making it ideal for molecular biology and protein expression.

Can Molekula supply IPTG in bulk quantities?

Yes, Molekula can provide IPTG in bulk, subject to availability and minimum order quantities. Contact our sales team for custom bulk pricing.

What documentation comes with an order of IPTG?

Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a product specification sheet for traceability and safety compliance.

Related products

Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.