5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside (X-GAL)

5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside; X-beta-Gal; X-Gal; XGal;

5-Bromo-4-chloro-3-indolyl beta-D-galactoside; BCIG;

5-Bromo-4-chloro-3-indolyl β-D-galactoside

7240-90-6

230-640-8

C₁₄H₁₅BrClNO₆ 

408.63

98%
White powder

X-Gal is used for immunohistocytochemistry applications. It is also the substrate of choice for blue-white selection of recombinant bacterial colonies with the lac+ genotype. X-Gal is a chromogenic substrate for β-galactosidase with a rich blue color. X-Gal is the substrate of choice for blue-white selection of recombinant bacterial colonies with the lac+ genotype.

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