IPTG (isopropyl-β-D-thiogalactopyranoside) ≥98%

Supplier: VWR Chemicals

Synonyms: IPTG, (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol, Isopropyl Beta-D-1-thiogalactopyranoside

437144NEA 22386 INR
437144N 43714BD
IPTG (isopropyl-β-D-thiogalactopyranoside) ≥98%
IPTG (Isopropyl-β-D-thiogalactopyranoside)

A chemical analogue of galactose which cannot be hydrolysed by the enzyme ß-galactosidase. IPTG is an inducer for activity of the E.Coli lac operon which acts by binding and inhibiting the lac repressor. Genes controlled by the lac promoter/operator sequence are expressed to high levels in the presence of IPTG. Essentially dioxane free.

Formula: C₉H₁₈O₅S
MW: 238,31 g/mol
Boiling Pt: 402 °C (1013 hPa)
Melting Pt: 109,5…110,5 °C
Storage Temperature: Freezer
MDL Number: MFCD00063273
CAS Number: 367-93-1
EINECS: 206-703-0

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Specification Test Results

Assay Min. 98 %
Appearance White crystalline powder
IR Spectrum Passes test
Specific optical rotation (1 %; water) -33 to -31 °
Dioxane Max. 1 ppm
Water Max. 1 %

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