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What is IPTG powder (CAS 367-93-1) used for?

Aug 13, 2025 Leave a message

What is IPTG powder (CAS 367-93-1)?

Isopropyl β-D 1-thiogalactopyranoside (IPTG) is a molecular biology reagent. This compound is a molecular mimic of allolactose. IPTG powder has the CAS number 367-93-1 and is also known by its chemical name isopropyl beta-D-1-thiogalactopyranoside. IPTG powder has a white crystalline appearance, with a molecular formula of C9H18O5S. It is highly soluble in water, ethanol, and methanol. The melting point of IPTG is around 114-115°C.

 

Product name Isopropyl-beta-D-thiogalactopyranoside
CAS 367-93-1
Molecular Formula C9H18O5S
Molecular weight 238.3
Appearance White powder

 

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What is IPTG powder (CAS 367-93-1) used for?

IPTG powder is a compound commonly used in molecular biology, particularly in the study and use of the lac operon. IPTG powder (CAS 367-93-1) mimics the action of allolactose by binding to the lac repressor but, unlike its analogue, does not get hydrolyzed in the cell and so allows for the lac operon to be expressed at particularly high levels. This method is commonly utilized in the study of genetics and protein expression. Our product is dioxane free and is produced using raw materials of non-animal origin.

 

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