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B8931

Sigma-Aldrich

Magenta-Gal

reagent for selection of recombinant bacterial clones

Synonym(s):

Red-Gal, 5-Bromo-6-chloro-3-indolyl β-D-galactopyranoside

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About This Item

Empirical Formula (Hill Notation):
C14H15BrClNO6
CAS Number:
93863-88-8
Molecular Weight:
408.63
MDL number:
MFCD02683897
UNSPSC Code:
12352200
PubChem Substance ID:
329773145
NACRES:
NA.85

grade

for molecular biology

Quality Level

200

sterility

non-sterile

product line

BioReagent

assay

≥98.0% (HPLC)

form

powder

solubility

methanol: soluble

suitability

suitable for substrate for β-galactosidase

storage temp.

−20°C

SMILES string

OC[C@H]1O[C@H](Oc2c[nH]c3cc(Cl)c(Br)cc23)[C@H](O)[C@@H](O)[C@H]1O

InChI

1S/C14H15BrClNO6/c15-6-1-5-8(2-7(6)16)17-3-9(5)22-14-13(21)12(20)11(19)10(4-18)23-14/h1-3,10-14,17-21H,4H2/t10-,11+,12+,13-,14+/m1/s1

InChI key

CHRVKCMQIZYLNM-HTOAHKCRSA-N

Related Categories

General description

Red-Gal is a chromogenic substrate for β-galactosidase, 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.
Red-Gal is a chromogenic substrate for b-galactosidase, 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 the blue-white selection of recombinant bacterial colonies with the lac+ phenotype.

Application

Magenta-Gal has been used for staining synthetic cytoplasmic or nuclear LacZ mRNA. It has also been used to detect the expression of the EphB1-β-gal fusion protein. ,Magenta-Gal is suitable for use in the selection of recombinant bacterial colonies with the lac+ phenotype.
Chromogenic substrate for β-galactosidase producing a red or magenta insoluble product.

Principle

When Red-Gal is hydrolyzed by β-galactosidase, the resulting product will form a red precipitate. Lac+ colonies grown in the presence of Red-Gal turn an intense red color, allowing for easy differentiation between lac+ and lac- colonies.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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