0428
X-GAL
Grade:ULTRA PURE GRADE
CAS Number: 7240-90-6Synonym(s): 5-bromo-4-chloro-3-indolyl-beta-D-galactopyranoside
Molecular Weight: 408.64Molecular Formula: C14H15BrClNO6
Storage Condition: FROZEN
CodeSizePriceQuantity
0428-100MG
0428-1G
Used in conjunction with IPTG to identify bacterial colonies that contain recombinant plasmids by blue/white selection. X-Gal forms an intense blue precipitate in the presence of β-Galactosidase. Insoluble. Reaction Condition: Stocks: X-Gal 20 mg/ml in DMF; IPTG 20 mg/ml in water. Mix 4:1 (X-Gal/IPTG) for spreading onto agar plates prior to plating transformed bacteria.

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