5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside
Product name:5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside
Synonym(s): 5-Bromo-4-chloro-3-indolyl β-D-galactoside, BCIG, X-Gal
CAS Number: 7240-90-6
Introduction
| Product Name | 5-Bromo-4-chloro-3-indolyl-beta-D-galactoside (X-GAL) |
| Items | Specifications |
| Appearance | White to off-white powder |
| Identification | The IR spectrum should be matched to the standard. |
| Solubility (50mg/ml in DMF:MeOH=1:1) | Clear solution |
| Purity | ≥98.0% |
| Moisture (KF) | ≤1.0% |
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.
