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X-Gal
Product ID: X874

Introduction

Description: 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
Storage Temp. -20 to 0 °C
UPC / SKU X874
CAS NUMBER 7240-90-6
Formula Weight 408.63
Formula C14H15BrClNO6
Synonyms 5-bromo-4-chloro-3-indolyl--D-galactopyranoside
Storage Temp. -20 to 0 C
Tariff Code 2940.00.6000
Risk Info (R) 20/22-36 
Safety Info (S) 26-36/37/39
No information available