PS-1145 has been shown to be an IKK (IKB kinase) inhibitor.

PS-432 is an allosteric inhibitor of PKCι and PKCζ with IC50 of 16.9 and 18.5 uM, respectively.

PSB-12379 is an α,β-Methylene-ADP (AOPCP) derivative, potent, selective ecto-5′-Nucleotidase (eN, CD73) inhibitor with Ki of 9.03/2.21 nM for rat/human recombinant eN.

PSB-12431 is an α,β-Methylene-ADP (AOPCP) derivative, potent, selective ecto-5′-Nucleotidase (eN, CD73) inhibitor with Ki of 9.2 nM for rat recombinant eN.

PSB-12553 is an α,β-Methylene-ADP (AOPCP) derivative, potent, selective ecto-5′-Nucleotidase (eN, CD73) inhibitor with Ki of 9.5 nM for rat recombinant eN.

PSI-7409 is the active 5′-triphosphate metabolite of PSI-7851. PSI-7851 is a selective and highly active nucleotide analog inhibitor of HCV.

PSMA-617 is a high potent prostate-specific membrane antigen (PSMA) inhibitor, with a Ki of 0.37 nM.

PSN632408 is an optimized agonist of GPR119 receptors that shows similar potency to OEA at both recombinant mouse and human GPR119 receptors, exhibiting EC50 values of 5.6 and 7.9 uM, respectively.

PSN-GK1 is a potent, orally available Glucokinase (GK) activator with EC50 of 130 nM at 5 mM glucose (4.3-fold).

Psora-4 is a potent and selective Kv1.3 potassium channel blocker with EC50 of 3 nM.

PST-1 is a photoswitchable inhibitor of microtubule with EC50 of 0.5 uM under 390 nm irradiation in the MDA-MB-231 human breast cancer cell lines.

PST-1P is a photoswitchable inhibitor of microtubule with EC50 of 0.7 uM under 390 nm irradiation in the MDA-MB-231 human breast cancer cell lines.

PT2399(PT=2399) is a novel HIF2α Antagonist.

PTC299 (PTC-299) is a novel potent inhibitor of dihydroorotate dehydrogenase (DHODH), inhibits hypoxia-induced VEGFA protein production in HeLa cells with IC50 of 1.64 nM.

PTC725 is a potent, selective, and orally bioavailable inhibitor of HCV NS4B, inhibits HCV 1b (Con1) replicons with EC50 of 1.7 nM.

Pterosin B is a potent and specific SIK3 signaling inhibitor that suppresses SIK3 downstream cascades by up-regulating the phosphorylation levels in the SIK3 C-terminal regulatory domain.

PTGR2-IN-22 is a potent PTGR2 ligand that inhibits 15-keto-PGE2 reductase activity with IC50 of 0.55 uM in HEK293T cells.

PTP1B-IN-5b is a potent protein tyrosine phosphatase PTP1B inhibitor with IC50 of 5.25 uM.

PTUPB is a novel dual acting COX-2/sEH inhibitor with IC50 of 1.26 uM/0.9 nM,does not inhibits COX-1 (IC50>100 uM).

PU-139 is a potent, unselective HAT (Histone acetyltransferase) inhibitor that blocks the HATs Gcn5, p300/CBP-associated factor (PCAF), CREB protein (CBP) and p300.

PU-141 is a potent, selective CBP/p300 inhibitor that inhibits SK-N-SH cell growth with GI50 of 0.48 uM.

Pulchinenoside A is a natural triterpenoid saponin that enhances synaptic plasticity in the adult mouse hippocampus and facilitates spatial memory in adult mice.