PD168393 is potent, cell-permeable, irreversible and selective inhibitor of EGF receptor (EGFR) tyrosine kinase and ErbB2.

PD-168077 maleate is a selective dopamine D4 receptor agonist, with a Ki of 9 nM.

PD-166866 is a selective inhibitor of the FGF-1 receptor tyrosine kinase (FGFR1) with IC50 = 55 nM, and no effect on c-Src, PDGFR-b, EGFR or insulin receptor tyrosine kinases or MEK, PKC, and CDK4.

PD158780 is a very potent inhibitor of EGFR with IC50 of 0.08 nM; pan-specific antagonist of ErbB receptor.

PD153035 is a potent and specific inhibitor of EGFR with Ki and IC50 of 5.2 pM and 29 pM; little effect noted against PGDFR, FGFR, CSF-1, InsR and Src.

PD-1/PD-L1 inhibitor 2 is reported to prevent the interaction of PD-L1 with PD-1 with an IC50 value of 18 nM,a useful compound immunomodulator compound.

PD-1/PD-L1 inhibitor 1 is a PD-1/PD-L1 interaction inhibitor,IC50 values: 0.006-0.10 μM,a useful immunomodulator compound.

PD0325901 (PD325901) is selective and non ATP-competitive MEK inhibitor with IC50 of 0.33 nM.

PD 153035(AG-1517) is an ultra-potent inhibitor of epidermal growth factor receptor tyrosine kinase (EGFRK), with an IC50 of 25 pM.

PD 150606 is a selective, cell-permeable non-peptide calpain inhibitor (Ki values for ν and m-calpains are 0.21 and 0.37 μM respectively).

PCI-32765 (Ibrutinib) is a potent and highly selective Btk inhibitor with IC50 of 0.5 nM.

PCI 29732 is a selective and irreversible Btk inhibitor with IC50 of 8.2 nM in a FRET based biochemical enzymology assay.

PBTZ169 is a decaprenyl-phosphoribose-epimerase (DprE1) inhibitor.

PBIT is a potent, cell-permeable inhibitor of Jumonji histone demethylase (JHDM). Innhibits JARID1B (also known as KDM5B or PLU1) with an IC₅₀ of about 3 μm in vitro.

Pazopanib Hcl (GW-786034) is a novel multi-target inhibitor of VEGFR1, VEGFR2, VEGFR3, PDGFR, FGFR, c-Kit and c-Fms with IC50 of 10 nM, 30 nM, 47 nM, 84 nM, 74 nM, 140 nM and 146 nM, respectively.

Parthenolide is a sesquiterpene lactone from the plant feverfew (T. parthenium).

Paroxetine hydrochloride hemihydrate is a antidepressant agents known as selective serotonin-reuptake inhibitors (SSRIs).

Pardoprunox(SLV-308) is a novel partial dopamine D2 and D3 receptor agonist and serotonin 5-HT1A receptor agonist; D2 (pKi = 8.1) and D3 receptor (pKi = 8.6) partial agonist (IA = 50% and 67%, respectively) and 5-HT1A receptor (pKi = 8.5) full agonist (IA

Panobinostat(LBH-589) is a broad-spectrum HDAC inhibitor; low nanomolar concentrations (IC50=5-20 nM) of LBH589 induced cell-cycle arrest, apoptosis, and histone (H3K9 and H4K8) hyperacetylation in MOLT-4 and Reh cell.

Palovarotene (R-667, RO-3300074) is a selective retinoic acid receptor gamma(RAR-γ) agonist for the treatment of emphysema.

Palbociclib isethionate(PD-0332991 isethionate) is a highly specific inhibitor of Cdk4 (IC50=11 nM) and Cdk6 (IC50=16 nM), having no activity against a panel of 36 additional protein kinases.

Palbociclib is an oral, small molecule cyclin-dependent kinase 4/6 (CDK4/6) inhibitor, now in Phase 3 clinical development for advanced breast cancer.

Palbociclib (PD-0332991) is an orally available pyridopyrimidine-derived cyclin-dependent kinase (CDK) inhibitor with potential antineoplastic activity.

Paclitaxel is a microtubule polymer stabilizer with IC50 of 0.1 pM in human endothelial cells.

PAC-1 is a potent procaspase-3 activator with EC50 of 0.22 μM and the first small molecule known to directly activate procaspase-3 to caspase-3.

p38-α MAPK-IN-1 is an inhibitor of MAPK14 (p38-α), with IC50 of 2300 nM in EFC displacement assay, and 5500 nM in HTRF assay.

PF-1355 is a potent, selective, orally active Myeloperoxidase (MPO) inhibitor with EC50 of 1.47 uM.

PD 404182 is a high affinity inhibitor of KDO 8-P synthase (Ki = 26 nM). Also inhibits dimethylarginine dimethylaminohydrolase 1 (DDAH1). Exhibits antiangiogenic and antiviral activity in vitro. Putative antibiotic against gram-negative bacteria.

Ozanimod is a potent and selective S1P1 and S1P5 receptor agonist with EC50s of 410±160 pM and 11±4.3 nM in [35S]-GTPγS binding, respectively.

ML-SI3 is a potent TRPML channel inhibitor with IC50s of 4.7 µM and 1.7 µM for TRPML1 and TRPML2, respectively.