Isopropyl-β-D-thiogalactopyranoside (IPTG)

Blue-Gal

X-Gal

Product ID
X874
Grouped product items
Package Size Qty
100 mg
$12.88
500 mg
$32.50
1 g
$55.41
X-Gal is also known 5-Bromo-4-chloro-3-indolyl-β-D-galactopyranoside and it is used to detect β-galactosidases. The lac Z gene encodes β-galactosidases which will cleave X-Gal to form an insoluble blue dimer. This is used in blue-white screening in E.coli, 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside
Solubility DMSO or DMF
Physical Form Solid
Product Number X874
CAS Number 7240-90-6
Formula Weight 408.63
Formula C14H15BrClNO6
Synonyms 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside
Weight 0.0000
Storage Temp. -20 °C
Tariff Code 2940.00.6000