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(Chromogenic Substrate)

CS126   5-Bromo-4-chloro-3-indolyl-beta-D-galactoside, 99+%
[ 7240-90-6 ]   f.w.:408.6 daltons

X-Gal is a chromogenic substrate for ?-galactosidase that produces a rich blue color that can easily be detected visually over background. X-Gal is the substrate of choice for blue-white selection of recombinant bacterial colonies with the lac+ genotype. X-Gal is used in conjunction with IPTG.

Quantity Price  
1gm $32.00
5gm + $150.00
10gm + $290.00