Stable solution of X-Gal and IPTG. Does not contain DMSO or DMF.IPTG is combined with X-GAL to detect lac+ colonies or cells in a colorimetric assay. Distinguishes recombinants (white) from non- recombinants (blue) in cloning strategies using vectors such as Lambda-11, M13mp 18 and 19, pUC18 and 19, pUR222 containing the lacZ gene.Solution concentration: 10 mg/mL X-Gal, 8 mg/mL IPTG.Not for human therapeutic use or for medicinal purposes. For research applications only.CAS Number: 7240-90-6, 367-93-1Molecular Weight: 408.6 Da / 238.3 DaChemical Formula: C14H15BrClNO6 / C9H18O5SSolubility: WaterStorage Temperature: +4C