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5-Bromo-6-chloro-3-indolyl β-D-galactopyranoside, also known as Red-Gal or Magenta-Gal. It is a chromogenic substrate for β-galactosidase producing a red or magenta insoluble product. It is used to determine the presence or absence of a cloned DNA insert in bacteria growing on agar plates. Red-Gal is designed to replace X-Gal in blue-white selection of recombinant bacterial colonies with the lac+ phenotype.

Product Details

Category Enzyme Substrates
Microbiology Products
Price POA
CAS Number 93863-88-8
Formula C14H15BrClNO6
Molecular Weight 408.63
Purity 98.0%
Appearance White to off-white powder
Availability In Stock
Storage Conditions -18°C

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