X-Gal/IPTG Mix

X-Gal/IPTG Mix



Ready-to-go X-gal/IPTG is 1000x concentrated stock solution of X-Gal/IPTG supplied in air tight brown bottles. The solution is sterile, stable, and ideal for selection of cloning constructs in all standard lacZ systems (alpha complementation). It offers time and material savings for both experienced and novice investigators. It also eliminates handling of hazardous DMSO or DMF. X-gal/IPTG Solution is sterilized by filtration through a 0.2 micron filter. Being still liquid at- 20°C eliminates freeze-thaw cycles that reduce selection efficiency. Agar plates containing X-gal/IPTG Solution are stable up to 6 months when stored protected from light at 4°C.


  • Features:
    • No weighing or dissolving of components
    • No DMSO or DMF required
    • Saves time and money
    • Dependable results
    • Can be safely handled outside of a fume hood
    • Does not freeze even when stored at -20°C, allowing for immediate use without thawing
    • Dries quickly on the plate, further accelerating the screening protocol
    • Provides fast color development and does not require additional 4°C incubation to enhance color
    • Clear colorless to yellow solution