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You are here:Home » Biochemicals » Biochem-Molecular Biology » X-Gal, 40mg/ml in DMF (5-Bromo-4-chloro-3-indolyl-b-D-galactoside galactopyranoside, Xgal)

X-Gal, 40mg/ml in DMF (5-Bromo-4-chloro-3-indolyl-b-D-galactoside galactopyranoside, Xgal)

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Specifications

Blue substrate used in the detection of b-galactosidase in bacteria or phage as a selection agent for cloning experiments utilizing the lacZ vector. Colonies expressing b-galactosidase will appear blue in the presence of XGAL. Others will appear white.
Catalog #X1000-05
Purity (HPLC) 99%
Purity (TLC): Single Spot
Concentration: ~40mg/ml
Form: Supplied as a liquid in dimethylformamide.
Solubility: Colorless to pale yellow, clear, complete
Identity by I.R. or NMR: Conforms to structure
RNase, DNase or Proteases None Detected
Quality Control (Blue-White Assay)[LacZ+]: Pale blue center/dense blue periphery
[LacZ-]: Faint blue center/white periphery
Important Note This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Storage and StabilityStore at -20°C. Aliquots are stable for 12 months. Protect from light.
Also AvailableX1000: XGAL
CAS Number7240-90-6
Molecular FormulaC14H15BrClNO6, DMF
Molecular Weight408.61
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate names5-Bromo-4-chloro-3-indolyl-?-D-galactoside (galactopyranoside) in Dimethylformamide


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