Rimonabant Hcl(SR141716A) is a selective central cannabinoid (CB1) receptor inverse agonist with Ki of 1.8 nM.

Rimonabant(SR141716) is a selective central cannabinoid (CB1) receptor inverse agonist with Ki of 1.8 nM.

RIP1-IN-22 is a highly potent, orally available, and brain-penetrating RIP1 kinase inhibitor with pKi of 9.04.

RIPA-56 is a highly potent, selective, and metabolically stable inhibitor of receptor-interacting protein 1 (RIP1) with an IC50 of 13 nM.

RIPGBM is a cell type-selective, small molecule inducer of apoptosis in GBM cancer stem cells (CSCs) with EC50 of 220 nM (GBM 1 cells).

RIPK2 inhibitor 1 is a novel potent, selective RIPK2 inhibitor with IC50 of 5-10 nM.

RIPK2 inhibitor OD36 is a potent, specific, ATP-competitive inhibitor of RIPK2 with IC50 of 5.3 nM, inhibits Tyr and Ser/Thr-directed activities of RIPK2.

Risdiplam (RG7916, RG-7916, RO7034067) is a highly potent, selective, orally active SMN2 splicing modifier for treatment of spinal muscular atrophy (SMA).

Rislenemdaz (MK 0657.

Rislenemdaz (MK 0657.

Risperidone(R 64 766) is a serotonin 5-HT2 receptor blocker(Ki= 0.16 nM) and a potent dopamine D2 receptor antagonist(Ki= 1.4 nM).

Ritonavir is an inhibitor of HIV protease used to treat HIV infection and AIDS,showed potent activity against COVID-19(SARS-COV-2) .

Rivipansel sodium (GMI-1070, PF-06460031) is a novel small molecule glycomimetic pan-Selectin antagonist with IC50 of 4.3 uM, 423 uM and 337 uM for E-selectin, P-selectin and L-selectin, respectively.

RJR-2403 (Rivanicline, Metanicotine) is a potent, selective neuronal nicotinic ACh (nAChR) agonist with high affinity to rat brain cortex (Ki=26 nM), does not significantly activate muscle type nAChRs or muscarinic receptors.

RJR-2403 (Rivanicline, Metanicotine) is a potent, selective neuronal nicotinic ACh (nAChR) agonist with high affinity to rat brain cortex (Ki=26 nM), does not significantly activate muscle type nAChRs or muscarinic receptors.

RK-20449 (RK20449) is a potent, small molecule inhibitor of hematopoietic cell kinase (HCK) with IC50 of 0.43 nM.

RN-1734 is a transient receptor potential vanilloid 4 (TRPV4) antagonist, blocking calcium influx induced by the TRPV4 agonist 4α-phorbol 12,13-didecanoate with IC50 values of 2.3, 5.9, and 3.2 µM for human, mouse, and rat TRPV4, respectively.

RNase L-IN-2 is a small-molecule activator of RNase L with EC50 of 22 uM.

RNPA1000 is a potent, specific small molecule inhibitor of S. aureus RnpA RNA degradation activity (IC50=100-125 uM), limits S. aureus mRNA turnover and growth.

RNPA2000 is a small-molecule inhibitor of Staphylococcus aureus RnpA-mediated RNA turnover and tRNA processing (IC50=130 uM).

Ro 08-2750 (Ro 082750) is a potent, selective, non-peptide nerve growth factor (NGF) inhibitor that binds to NGF dimer with Kd of 1 uM.

RO 2443 is a potent, dual MDM2/MDMX antagonist that inhibits both MDM2 (IC50=33 nM) and MDMX (IC50=41 nM) binding to p53, but poor water solubility does not allow for a meaningful assessment of its cellular activity..