Shelf life (days): 1460.0
Formulation: A crystalline solid
Formal Name: 1-[[4-[[3-methyl-5-[(phenylsulfonyl)methyl]phenoxy]methyl]phenyl]methyl]-2R-pyrrolidinemethanol, monohydrochloride
Purity: ≥98%
Formula Markup: C27H31NO4S / HCl
Formula Weight: 502.06602
CAS Number: 1706522-79-3
Notes: PF-543 is a potent inhibitor of sphingosine kinase 1 (SPHK1; IC50 = 2 nM) that inhibits sphingosine-1-phosphate (S1P) binding to human recombinant SPHK1 (Ki = 3.6 nM).{27977} It is selective for SPHK1 over SPHK2 (IC50 = 356 nM) as well as a panel of protein and lipid kinases and S1P receptors at a concentration of 10 µM. PF-543 inhibits the formation of S1P in 1483 cells and human whole blood (EC50s = 8.4 and 26.7 nM, respectively). In vivo, PF-543 prevents sickling, hemolysis, and inflammation in a transgenic mouse model of sickle cell disease.{27978}