9630-OP

X-Gal

OmniPur^® Grade

• Synonym(s): OmniPur^® X-Gal, 5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside, BCIG, X-Gal
• Empirical Formula (Hill Notation): C₁₄H₁₅BrClNO₆
• CAS Number: 7240-90-6
• Molecular Weight: 408.63
• MDL number: MFCD00005666
• UNSPSC Code: 12352202
• NACRES: NA.25

Properties

• Quality Level: 100
• form: powder
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze
• color: white
• shipped in: ambient
• InChI: 1S/C19H29N5O.2C2H6O2.2Cu/c1-21-3-7-23(8-4-21)14-17-11-16(13-20)12-18(19(17)25)15-24-9-5-22(2)6-10-24;2*1-2(3)4;;/h11-12,25H,3-10,14-15H2,1-2H3;2*2-4H,1H3;;/q;;;+1;+2
• InChI key: GGILAJWFDJWIQO-UHFFFAOYSA-N

Description

General description

X-Gal is a chromogenic substrate used in conjunction with IPTG for blue/white colony selection. It is a soluble colorless compound comprising galactose attached to a substituted indole. In the presence of X-Gal the lac⁺ bacteria after α-complementation form blue colonies and bacteria carrying recombinant plasmid form white colonies.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

OMNIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable