X-Gal (5-Bromo-4-chloro-3-indolyl-beta-D-galactopyranoside) [7240-90-6]

X-Gal (5-Bromo-4-Chloro-3-Indolyl-Beta-D-Galactopyranoside) [7240-90-6] is widely used in synthesis and formulation workflows, featuring a molecular formula of C14H15BrClNO6 and a molecular weight of 408.63. This compound belongs to the class of stains and indicators, serving an essential role in various chemical processes. The GHS signal word indicates potential hazards associated with this substance, making it crucial to handle with care. This specific product boasts a white to off-white crystalline powder form, with a purity of at least 99%, as verified by HPLC analysis. It is stored at temperatures between -15 to -20 °C and presents as a clear, colourless to light yellow solution in a 1:1 mixture of DMF and MeOH. Solubility tests confirm that X-Gal is soluble in 5% DMF. Additionally, the product exhibits a specific optical rotation of -61.5 ± 1.

• CAS Number: 7240-90-6
• Molecular Formula: C14H15BrClNO6
• Exact Mass: 249.0192708
• Purity HPLC: min 99%
• Assay (HPLC on Anhydrous Basis): min 98% w/w
• GHS Signal Word: Danger
• Molecular Weight: 408.63
• Hazard Statements:
  • H302: Harmful if swallowed [Warning Acute toxicity, oral]