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IPTG (C. elegans)
i-555

(DIOXANE-FREE)

Properties and Applications:
IPTG (isopropylthio-beta-D-galactoside) is an inducer of beta-galactosidase production in bacteria. IPTG is used together with the chromogenic substrates X-gal or Bluo-Gal to determine lac gene expression in recombinant methods.
IPTG is a chemical analog of galactose which cannot be cleaved by the enzyme B-galactosidase. Thus, it can serve as an inducer for activity of the E. coli lac operon by binding and inactivating the lac repressor. A stock solution, 0.1 mol/L, is prepared by dissolving IPTG in redist. water with subsequent sterile filtration of the solution. The final concentration of IPTG in indicator plates-added after autoclaving-should b 0.2 mmol/L.

Analytical Specifications:

  • Recommended storage condition: frozen
  • Hazard warning: irritant
  • molecular weight: 238.21
  • appearance: white, free-flowing powder
  • melting point: 118° C


NOTE: quotes for larger sizes available upon request! email:

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I-555IPTG1g1$10.00Add to Cart
I-555IPTG5g1$20.00Add to Cart
I-555IPTG10g1$30.00Add to Cart
I-555IPTG25g1$90.00Add to Cart
I-555IPTG50g1$150.00Add to Cart
I-555IPTG100g1$300.00Add to Cart
I-555IPTG500g1$1,200.00Add to Cart