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

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Cat No.

CSUB-0266

Applications

X-Gal is a chromogenic substrate for β-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.

Form

powder

Enzyme Commission Number

230-640-8

CAS No.

7240-90-6

Molecular Weight

408.63

Storage

-20°C

Synonyms

5-Bromo-4-chloro-3-indolyl β-D-galactoside; BCIG; X-Gal

Molecular Formula

C14H15BrClNO6

MDL Number

MFCD00005666

PubChem Substance ID

24891761

Beilstein Registry Number

1402009

Substrates

Galactosidase, beta