Formulation: Each vial contains 1 mg of highly purified lipopolysaccharide (LPS) lyophilized in water.
Shelf life (days): 730
Notes: UltraPure LPS from Escherichia coli O111:B4 is a form of lipopolysaccharide (LPS) extracted from wild-type S-form E. coli serotype O111:B4 and re-extracted to reduce residual contaminating proteins.{47669} LPS is commonly used to activate toll-like receptor 4 (TLR4) on leukocytes, eliciting inflammatory signaling in isolated cells and in vivo.{31331,31332,31333,31334}.