V900917
Isopropyl β-D-thiogalactoside
Vetec™, reagent grade, ≥99%
Synonym(s):
Isopropyl β-D-1-thiogalactopyranoside, IPTG, Isopropyl β-D-thiogalactoside
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About This Item
Empirical Formula (Hill Notation):
C9H18O5S
CAS Number:
Molecular Weight:
238.30
Beilstein:
4631
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
Recommended Products
grade
reagent grade
product line
Vetec™
Assay
≥99%
storage temp.
2-8°C
SMILES string
CC(C)S[C@@H]1OC(CO)[C@H](O)C(O)[C@H]1O
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
BPHPUYQFMNQIOC-NXRLNHOXSA-N
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Application
IPTG is commonly used in cloning procedures that require induction of β-galactosidase activity. It is used in conjunction with X-Gal or Bluo-Gal in blue-white selection of recombinant bacterial colonies that induce expression of the lac operon in Escherichia coli. IPTG functions by binding to the lacI repressor and altering its conformation, which prevents the repression of the β-galactosidase coding gene lacZ.
Other Notes
Non-metabolizable galactose analog.
Legal Information
Vetec is a trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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