Pipinib is a small molecule Hedgehog signaling inhibitior by selective inhibition of phosphatidylinositol 4-kinase IIIβ (PI4KB, IC50=2.2 uM), inhibits Purmorphamine-induced osteogenesis with IC50 of 0.6 uM.Pipinib inhibited GLI reporter gene activity in Sonic hedgehog (Shh)-LIGHT2 cells (IC50=1.7 uM) and expression of Hh target genes Ptch1 and Gli1 (IC50=3.1 uM and 4.1 uM, respectively).Pipinib does not modulate Hh signaling via SMO.Pipinib is an ATP-competitive inhibitor of PI4KB activity, does not inhibit isoenzymes PI4KA, PI4K2A or PI4K2B up to 50 uM.Pipinib suppresses GLI-mediated transcription and Hh target gene expression by impairing SMO translocation to the cilium.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.