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5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside_Molecular_structure_CAS_7240-90-6)
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5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside

Catalog No. B6024 Name Sigma Aldrich
CAS Number 7240-90-6 Website http://www.sigmaaldrich.com
M. F. C14H15BrClNO6 Telephone 1-800-521-8956
M. W. 408.629 Fax
Purity Email
Storage Chembase ID: 130195

SYNONYMS

IUPAC name
(2S,3R,4S,5R,6R)-2-[(5-bromo-4-chloro-1H-indol-3-yl)oxy]-6-(hydroxymethyl)oxane-3,4,5-triol
IUPAC Traditional name
X-gal
Synonyms
X-Gal
BCIG
5-Bromo-4-chloro-3-indolyl β-D-galactoside

DATABASE IDS

EC Number 230-640-8
Beilstein Number 1402009
CAS Number 7240-90-6
PubChem SID 24891889
MDL Number MFCD00005666

PROPERTIES

Suitability suitable for identification of lac+ bacterial colonies
Apperance tablet
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Storage Temperature -20°C
German water hazard class 3

DETAILS

Description (English)
Application
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.
Quantity
Contains 5 mg substrate per tablet
Reconstitution
A stock solution (100 mg/ml) is prepared by dissolving X-Gal in dimethylformamide and should be stored at -20°C and protected from light. Sterilization is not required.

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