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Chemical structure of IPTG (Isopropyl β-D-thiogalactoside)

GC30002

IPTG (Isopropyl β-D-thiogalactoside)

Also known as (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-propan-2-ylsulfanyloxane-3,4,5-triol

IPTG (isopropyl-β-D-thiogalactopyranoside) is a commonly used inducer used to induce the expression of lactose operon (Lac) downstream genes and corresponding proteins in Escherichia coli

ChemicalCAS367-93-1MW238.3FormulaC9H18O5S
CAS number
367-93-1
Molecular weight
238.3
Formula
C9H18O5S
Solubility
DMSO ： ≥ 60 mg/mL (251·78 mM)
InChIKey
BPHPUYQFMNQIOC-NXRLNHOXSA-N
Catalogue number
GC30002
Brand
GLPBIO
Computed properties PubChem CID 656894 · XLogP -0.5 · TPSA 115 Ų · H-bond donors 4
XLogP
-0.5
TPSA
115 Ų
H-bond donors
4
H-bond acceptors
6
Rotatable bonds
3
Heavy atoms
15

SMILES CC(C)S[C@H]1[C@@H]([C@H]([C@H]([C@H](O1)CO)O)O)O

Computed descriptors from PubChem (CID 656894), public domain. Identity cross-checked against the supplier's molecular formula and weight — verify before use.

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