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S-Gal/LB Agar Blend from Sigma-Aldrich

ProductsS-Gal/LB Agar Blend from Sigma-Aldrich
Company Sigma-Aldrich
Item S-Gal/LB Agar Blend
Description Ingredients (g/L): Tryptone, 10
Yeast extract, 5
Sodium chloride, 10
Agar, 12
S-Gal, 0.3
Ferric ammonium citrate, 0.5
IPTG, 0.03

-Gal is a patented, water soluble, autoclavable chromogenic substrate for -galactosidase. The enzymatic hydrolysis of S-Gal by -galactosidase generates a black insoluble precipitate. Lac+ colonies grown in the presence of S-gal are much darker than those grown in the presence of X-Gal, allowing for easier differentiation between lac+ and lac- colonies.
Info Sigma-AldrichSigma-Aldrich
Sigma-Aldrich Corp.
St. Louis, MO, USA
Customer Service: 800-325-3010
Tech Support: 800-325-5832
Fax Number: 314-771-5757
Web Site:
NOTE: Price information is approximate list price and actual prices may vary.

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