Phorbol 12,13-dibutyrate (PDBu; Phorbol dibutyrate) is a phorbol ester acting as a PKC activator and a potent skin tumor promoter.

Protein kinase inhibitor H-7 is a novel and potent PKC (protein kinase C) inhibitor.

Chelerythrine chloride (NSC-36405; NSC36405), a benzophenanthridine alkaloid extracted from the plant Greater celandine (Chelidonium majus), is a potent, cell-permeable, selective protein kinase C inhibitor with an IC50 of 660 nM.

VTX-27 (VTX27) is a novel, potent and selective protein kinase C θ (PKC θ) inhibitor with Ki values of 0.08 nM and 16 nM for PKC θ and PKC δ.

Ruboxistaurin (LY-333531; LY333531) is a novel, potent and specific inhibitor of PKCβ (protein kinase C) with potential antidiabetic activity.

D-erythro-Sphingosine (Erythrosphingosine) is a highly potent activator of p32-kinase with an EC50 of 8 μM.

PKCß inhibitor, an anilino-monoindolylmaleimide compound, is a novel, potent, ATP-competitive and selective inhibitor of PKCß isozymes.

PKC-theta inhibitor is a novel, potent and selective PKC-θ inhibitor with an IC50 of 12 nM.

Ingenol, a PKC activator ( Ki =30 μM), is a novel and potent diterpenoid.

N-Desmethyltamoxifen HCl is the major metabolite of tamoxifen, which is a SERM and anticancer medication.