X-Gal and IPTG, Ready to Use Non-Toxic Solution

SKU
G-2570
  • CAS:7240-90-6, 367-93-1
  • Formula:C14H15BrClNO6 / C9H18O5S
  • MW:408.6 Da / 238.3 Da
  • Appearance:Clear yellow solution
  • Purity:≥99%

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Product Name Qty
X-GAL and IPTG Ready to Use Non-Toxic Solution
10 ml
$66.63
X-GAL and IPTG Ready to Use Non-Toxic Solution
100 ml
$91.30
X-GAL and IPTG Ready to Use Non-Toxic Solution
500 ml
$271.93

Stable solution of X-GAL and IPTG. Does not contain DMSO or DMF. Solution concentration is 10mg/ml X-Gal and 8mg/ml IPTG.

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.

 

X-Gal Product specification IPTG product specification 
  • Synonyms: 5-Bromo-4-chloro-3-indolyl-β-D-galactoside
  • Molecular formula: C14H15BrClNO6
  • Molecular weight: 408.6
  • CAS # 7240-90-6
  • Purity: >99% 
  • Water Content: 0.05%
  • Soluble in: DMSO and DMF
  • Store at: 0-5°C
  • Synonyms:   Isopropyl-β-D-thio-galactopyranoside
  • Molecular formula:C9H18O5S
  • Molecular Weight:  238.3
  • CAS #  238.3
  • Purity: >99%
  • Water Content: <0.49%
  • Soluble in: Ethanol and Water
  • Store at: 0-5°C

 

 

 

More Information
Alternate Name/Synonyms
Indoxyl-Gal and Isopropyl-beta-D-thiogalactopyranoside
SKU
G-2570
CAS #
7240-90-6, 367-93-1
Chemical Name
(2S,3R,4S,5R,6R)-2-[(5-bromo-4-chloro-1H-indol-3-yl)oxy]-6-(hydroxymethyl)oxane-3,4,5-triol / (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-propan-2-ylsulfanyloxane-3,4,5-triol
Chemical Formula
C14H15BrClNO6 / C9H18O5S
Molecular Weight
408.6 Da / 238.3 Da
Appearance
Clear yellow solution
Purity
≥99%
Solubility
Water
Storage Temp
+4°C, desiccated
THERAPEUTIC AREA
Not Applicable
USE
Chromogenic substrate of β-Galactosidase used in combination with IPTG for detection of β-Galactosidase activity in bacterial colonies. X-GAL is cleaved at the B1-4 bond between galactose and the 5-Bromo-4-chloro-3-indolyl portion of X-GAL by β-Galactosidase via hydrolysis. The cleavage of X-GAL results in the production of a water insoluble blue dichloro-dibromo-indigo precipitate. In cloning strategies with vectors such as Lambda-11, M13mp18 and 19, pUC18 and 19, pUR222 the E. coli lacZ gene is transformed to lac+ cells. After transformation the cells show β-Galactosidase activity in the presence of media containing X-GAL and IPTG. The insertion of a DNA fragment into the cloning sites of the lacZ gene results in the disruption of β-Galactosidase activity leading to the appearance of white colonies. Non-recombinant cells produce a blue indigo dye. Useful in Blue-White Screening Applications.
Handling
Ensure adequate ventilation, especially in confined areas. Use personal protective equipment as required. Use with local exhaust ventilation. Do not breathe dust/fume/gas/mist/vapors/spray. Handle in accordance with good industrial hygiene and safety practice. Corrosive hazard. Wear protective gloves/clothing and eye/face protection. Thermal decomposition can lead to release of toxic/corrosive gases and vapors.
Shelf Life
1 year
Certificate of Analysis 1
GHS PICTOGRAMS
Handling Ensure adequate ventilation, especially in confined areas. Use personal protective equipment as required. Use with local exhaust ventilation. Do not breathe dust/fume/gas/mist/vapors/spray. Handle in accordance with good industrial hygiene and safety practice. Corrosive hazard. Wear protective gloves/clothing and eye/face protection. Thermal decomposition can lead to release of toxic/corrosive gases and vapors.
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