Skip to Content
Merck
CN
All Photos(1)

Documents

L6016

Sigma-Aldrich

Lipopolysaccharides (rough strains) from Salmonella enterica serotype typhimurium TV119 (Ra mutant)

Sign Into View Organizational & Contract Pricing

Synonym(s):
LPS
MDL number:
UNSPSC Code:
12352201
NACRES:
NA.25

biological source

Salmonella enterica (Serotype typhimurium TV119 Ra mutant)

form

lyophilized powder

impurities

<3% Protein (Lowry)

shipped in

ambient

storage temp.

2-8°C

General description

This product is phenol:chloroform:petroleum ether extracted from Salmonella typhimurium strain TV119(Ra mutant). The source strain is from a private collection.

Biochem/physiol Actions

Lipopolysaccharides (LPS) are localized in the outer layer of the membrane and are, in noncapsulated strains, exposed on the cell surface. They contribute to the integrity of the outer membrane, and protect the cell against the action of bile salts and lipophilic antibiotics.

Preparation Note

Prepared by phenol-chloroform-petroleum ether extraction.

The product is soluble in water (5 mg/ml) or cell culture medium (1 mg/ml) yielding a hazy, faint yellow solution. A more concentrated, though still hazy, solution (20 mg/ml) has been achieved in aqueous saline after vortexing and warming to 70-80 oC. Lipopolysaccharides are molecules that form micelles in every solvent. Hazy solutions are observed in water and phosphate buffered saline. Organic solvents do not give clearer solutions. Methanol yields a turbid suspension with floaters, while water yields a homogeneously hazy solution.

Other Notes

To gain a comprehensive understanding of our extensive range of Lipopolysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service