Gal is a chromogenic substrate for β-galactosidase that produces a rich blue color that can easily be detected visually over background. It is soluble in dimethylformamide and methanol. The product is not soluble in water.
- X-Gal has been used for immunohistocytochemistry applications.
- It is also the substrate of choice for blue-white selection of recombinant bacterial colonies with the lac+ genotype.
CAS Number: 7240-90-6
Molecular Formula: C14H15BrClNO6
Molecular Weight: 408.63 g/mol
InChI Key: OPIFSICVWOWJMJ-AEOCFKNESA-N
100 mg, 1 g