R428 is a potent and selective small-molecule inhibitor(IC50=14 nM), blocks the activities of Axl.

R-7050 is a tumor necrosis factor receptor (TNFR) antagonist with greater selectivity toward TNFα.

R-7128(Mericitabine) is a selective nucleoside analog inhibitor of the hepatitis C virus (HCV) NS5B RNA-dependent RNA polymerase, with activity across all HCV genotypes.

R788 (Fostamatinib), a prodrug of the active metabolite R406, is a potent Syk inhibitor with IC50 of 41 nM.

R935788 (Fostamatinib disodium, R788) is a Syk inhibitor with IC50 of 41 nM.

Rac BHFF is a potent and selective GABAB receptor positive allosteric modulator that increases the efficacy and potency of GABA ( > 149% and > 15-fold respectively). Orally active and exhibits anxiolytic activity in vivo.

Racecadotril (acetorphan), a potent enkephalinase inhibitor (IC50= 4.5 uM), protects endogenous enkephalins from degradation.

RAD140 is a potent, orally bioavailable, nonsteroidal selective androgen receptor modulator (SARM).

RAD51-IN-17 is a quinazolinone derivative that inhibts homologous recombinase RAD51, effectively inhibits both RAD51 foci formation in response to DNA damage, and proliferation of TNBC cell lines.

Radafaxine Hcl(BW-306U; GW-353162A) is a potent metabolite of bupropion; selective for inhibiting the reuptake of norepinephrine over dopamine; DAT (dopamine transporter) and NET(norepinephrine transporter) transporters inhibitor, and nAChR family modulat

Radezolid (RX-1741) is a novel oxazolidinone antibiotic agent.

Radiprodil is an orally active and selective NMDA NR2B antagonist; a potential therapeutic agent in treatment of neuropathic pain and possibly other chronic pain conditions.

Radotinib(IY-5511) is a novel and selective BCR-ABL1 tyrosine kinase inhibitor with IC50 of 34 nM for wild-type BCR-ABL1 kinase.

RAF265 (CHIR-265) is a highly selective B-Raf and VEGFR2 inhibitor with IC50 of 3-60 nM and EC50 of 30 nM, including B-Raf, C-Raf and mutant B-Raf.

RAF709 is a novel Raf kinase inhibitor extracted from patent WO2014151616A1, compound example 131, has an IC50 of 0.5 and 1.8 nM for c-Raf and b-Raf, respectively.

Ralinepag is a potent, orally bioavailable and non-prostanoid prostacyclin (IP) receptor agonist, with EC50s of 8.5 nM, 530 nM and 850 nM for human and rat IP receptor and human DP1 receptor, respectively.

Raltegravir Salt is a potent human immunodeficiency virus (HIV) integrase inhibitor and a novel anti-AIDS drug.

Raltitrexed(ZD1694), an inhibitor of thymidylate synthase, is an antimetabolite drug used in cancer chemotherapy.

Ramosetron Hydrochloride(YM060 Hydrochloride) is a serotonin 5-HT3 receptor antagonist for the treatment of nausea and vomiting.

Ranolazine (Ranexa)

Ranolazine(RS-43285) is an antianginal agent with antiarrhythmic properties that achieves its effects via a novel mechanism of action (inhibition of the late phase of the inward sodium current), without affecting heart rate or blood pressure (BP).

RapaLink-1 is a third-generation mTOR inhibitor that overcomes resistance to existing first- and second-generation inhibitors; blocks mTOR signaling of the F2108L mTOR and M2327I mTOR drug resistant mutants; RapaLink-1 is more potent mTOR inhibitor than rapamycin.