5-Bromo-4-Chloro-3-Indolyl-β-D-Galactopyranoside

(X-Gal)
Inalco Code: 1758-0300
C.A.S.R.N.: 7240-90-6
Applications: Substrate for β-Galactosidase that is converted, by the enzyme, into an intense indigo-blue chromophore (615 nm). It has various applications. It is used in bacterial detection systems; in gene fusion studies where β-Galactosidase is the marker, or to identify natural lac gene carrying bacteria (e.g. general coliforms). It is also used in histochemistry.
Formula: C14H15BrClNO6

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