CID755673 is a potent and selective cell-active small molecule inhibitor for PKD with an IC50 of 182 nM; exhibits selective PKD1 inhibition when compared with AKT, PLK1, CAK, CAMKIIα, and PKC isoforms.

kb NB 142-70 is a selective protein kinase D (PKD) inhibitor.

BPKDi is a potent bipyridyl PKD inhibitor with IC50s of 1 nM, 9 nM and 1 nM for PKD1, PKD2 and PKD3, respectively. BPKDi blocks signal-dependent phosphorylation and nuclear export of class IIa HDACs in cardiomyocytes.