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Fisher Biotec X-Gal (5-Bromo-4-chloro-3-indoyl-b-D-Galactopyranoside) (1gm)
FIS1758-0300-1
New product
X-Gal is a chromogenic substrate for b-galactosidase that produces a blue 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.
