Palmostatin B is a potent Acyl protein thioesterase 1 (APT1.

Pamiparib (BGB-290, BGB290) is a highly potent, selective and brain penetrant PARP1/2 inhibitor with potent anti-tumor activity.

Panadiplon (U-78875) is an anxiolytic drug with a novel chemical structure that is not closely related to other drugs of this type.

Pandacostat is the first nonselective HDAC inhibitor (pan-HDACi) with Ki of 0.12/0.07/0.95/0.18/0.032/1.1/0.5/1.4 uM for HDAC1/2/3/4/5/6/7/8/9, respectively.

pan-PIM inhibitor 17 is a potent, selective, orally available inhibitor of Pim kinase with IC50 of 0.8, 5.1 and 1.8 nM for Pim1, 2 and 3, respectively.

Pan-RAS-IN-1 is a pan-Ras inhibitor that disrupts the interaction of Ras proteins and their effectors.

Pantoprazole is a proton pump inhibitor used for short-term treatment of erosion and ulceration of the esophagus caused by gastroesophageal reflux disease.

Papain is a cysteine protease of the peptidase C1 family, which is used in food, pharmaceutical, textile, and cosmetic industries.

PAPTP is a PAP-1 derivative, potent, specific Kv1.3 channel inhibitor with IC50 of 31 nM in Jurkat T lymphocytes by patch-clamp, reduces cell viability and efficiently kills B16F10 cancer cells at 1 uM.

PAQ (Compound 4c) is a quinoxaline derivative. PAQ is an orally active neuroprotective agent, which targets dopamine (DA) neurons and activates reticulum endoplasmic ryanodine receptor (RyR) channels, without effects on glia cells.

Paradol(6-Paradol) is the active flavor constituent of the seeds of Guinea pepper (Aframomum melegueta); Paradol has been found to have antioxidative and antitumor promoting effects.

Parecoxib is a selective COX2 inhibitor.

Paricalcitol

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

PARP10 inhibitor 22 is a selective, cell-active inhibitor of PARP10 with IC50 of 1.8 uM, exhibits >10-fold selectivity over a large subset of other PARP family members.

PARP11 inhibitor ITK7 (ITK7) is a potent and selective PARP11 inhibitor with IC50 of 14 nM, displays >200-fold selectivity over other PARPs.

PARP14 inhibitor H10 (H10) is a potent, selective, cell-active PARP14 inhibitor with IC50 of 490 nM, with good selectivity over other PARPs (24-fold and 18-fold over PARP1 and TNKS1, respectively).

PAT-048 (PAT048) is a potent, selective, noncompetitive autotaxin inhibitor with IC50 of 1.1 nM against the lysoPLD activity of human ATX.

PAT-1251 (PAT 1251, PAT1251) is a potent, selective and orally bioavailable lysyl oxidase-like 2 (LOXL2) inhibitor with IC50 of 0.71 uM in human whole blood assays, with high selectivity over LOX (400-fold) and other amine oxidases.

PAT-505 (PAT 505, PAT505) is a potent, selective, noncompetitive, and orally active autotaxin inhibitor with IC50 of 2.0 nM against the lysoPLD activity of human ATX.

Paullinic acid is a long-chain fatty acid that has been detected in multiple biofluids, such as blood and urine.

Pax2 inhibitor EG1 (EG1) is a potent, small molecule inhibitor of Pax2 mediated transcription activation, effectively blocks Pax2 activity and DNA binding with Kd of 1.35-1.5 uM; inhibits Pax2 mediated expression with IC50 of 10 uM, and inhibits proliferation of Pax2 positive renal and ovarian cancer cell lines but has little effect on Pax2 negative cancer cells; inhibits embryonic kidney development.