Oxonic acid potassium salt is an inhibitor of uricase, oxonic inhibits the phosphorylation of 5-FU to 5-fluorouridine-5'-monophosphate catalyzed by pyrimidine phosphoribosyl-transferase in a different manner from allopurinol in cell-free extracts and inta

Oxibendazole

Oxfendazole

Oxcarbazepine inhibits the binding of [3H]BTX to sodium channels with IC50 of 160 μM and also inhibits the influx of 22Na+ into rat brain synaptosomes with IC50 about 100 μM.

Oxadiazon is a preemergent herbicide.

OX-14 is a highly potent farnesyl pyrophosphate synthase (FPPS) inhibitor with IC50 of 2.46 nM, with significantly lower binding affinity to hydroxyapatite.

o-vanillin (C29L.

OUP-16 is a potent H4R agonist with a considerable selectivity over H3R..

OUL35 derivative 32 is a potent and selective inhibitor of mono-ADP-ribosyltransferase PARP10/ARTD10 with IC50 of230 nM, rescues HeLa cells from ARTD10-induced cell death..

Otilonium Bromide is an antimuscarinic used as a spasmolytic agent.

Otamixaban(FXV673) is a potent (Ki = 0.5 nM), selective, rapid acting, competitive and reversible fXa inhibitor that effectively inhibits both free and prothrombinase-bound fXa.

OSMI-4 (OGT inhibitor 4b) is a novel potent, selective, cell-active O-linked N-acetylglucosamine transferase (OGT) inhibitor with EC50 of ~3 uM.

Orvepitant (GW823296) is a potent and selective, brain penetrant NK1 receptor antagonist with pKi of 10.2.

Orotic acid (6-Carboxyuracil)

ORM-10962 is a potent, highly selective sodium-calcium exchanger (NCX) inhibitor, significantly reduces inward/outward NCX currents with IC50 of 55 and 67 nM, respectively.

Orita-13 is potent inhibitor of Migration inhibitory factor (MIF) tautomerase activity with Ki of 17 uM..

Org 42599 is a cell-permeant, allosterically binding, small-molecule agonist of luteinizing hormone (LH) receptor that rescues the folding and cell surface expression mutant mutant human LH receptors A593P and S616Y (EC50=70.8 nM)..

Org 42599 is a cell-permeant, allosterically binding, small-molecule agonist of luteinizing hormone (LH) receptor that rescues the folding and cell surface expression mutant mutant human LH receptors A593P and S616Y (EC50=70.8 nM)..

Org 27569 is an allosteric modulator of cannabinoid CB1 receptor, induces a CB1 receptor state that is characterized by enhanced agonist affinity and decreased inverse agonist affinity.

Orally active and specific inhibitor of human hematopoietic prostaglandin D synthase (H-PGDS) (IC50 = 6 μM). Antiallergic and anti-inflammatory.

ONO-DI 004 is a potent, selective EP1 agonist..

ONO-AE3-208(AE 3-208) is an EP4 antagonist; suppresses cell invasion, migration, and metastasis of prostate cancer.

ONO-9910539 is a potent LPA1 inhibitor with IC50 of 22 nM..

ONO-9780307 is a potent LPA1 inhibitor with IC50 of 27 nM..

ONO-6126 is a potent and selective PDE4 inhibitor for the treatment of bronchial asthma and allergic conjunctivitis..

ONO-3080573 is a potent LPA1 inhibitor with IC50 of 11 nM..

Ondansetron is a serotonin 5-HT3 receptor antagonist used mainly as anantiemetic (to treat nausea and vomiting), often following chemotherapy.

ON108110 (ON-108110, ON 108110) is a novel multi-kinase inhibitor of protein kinase CK2 (CK2α1/2, IC50=3/2 nM) as well as CDK4/6 (IC50=2-24 nM).

ON 146040 is a potent, dual PI3K/BCR-ABL inhibitor with IC50 of 14/20 nM for PI3Kα/δ , IC50 of 20 nM for BCR/ABL.

Omeprazole(Prilosec) is a proton pump inhibitor used in the treatment of dyspepsia.