SGC 0946 is a highly potent and selective DOT1L methyltransferase inhibitor with IC50 of 0.3 nM, is inactive against a panel of 12 PMTs and DNMT1.

SF1670 is a selective PTEN (phosphatase and tensin homolog) inhibitor with an IC50 of 2 micromolar.

Sertindole, a neuroleptic, is one of the newer antipsychotic medications available.

Sertaconazole nitrate is a topical broad-spectrum antifungal that is developed to provide an additional agent for the treatment of superficial cutaneous and mucosal infections.

Serotonin hydrochloride is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrochloride is also a catechol O-methyltransferase (COMT) inhibitor with a Ki of 44 μM.

Sematilide, also known as CK-1752, is a class III antiarrhythmic.

Securinine is an alkaloid originally isolated from S. suffructicosa.It reduces proliferation of SW480 colon adenocarcinoma cells in a dose- and time-dependent manner via increased Beclin 1 expression and induction of autophagy.

SCR7 pyrazine is a potent and selective inhibitor of non-homologous end joining (NHEJ),useful tool compound for CRISPR editing.

SC-514 (GK 01140), a small molecule, is a selective inhibitor of IKK-2; does not inhibit other IKK isoforms or other serine-threonine and tyrosine kinases.

SBC-110736 is a novel inhibitor of proprotein convertase subtilisin kexin type 9 (PCSK9), lowering cholesterol levels in mice.

SB505124 is a selective inhibitor of TGFβR for ALK4, ALK5 with IC50 of 129 nM and 47 nM, respectively, also inhibits ALK7, but does not inhibit ALK1, 2, 3, or 6.

SB 415286 is a potent and selective cell-permeable, ATP-competitive inhibitor of GSK3α with an IC50 value of 78 nM (similar potency for GSK3β) and a Ki value of 31 nM.

Saxagliptin (rINN) is an orally active hypoglycemic (anti-diabetic drug) of the new dipeptidyl peptidase-4 (DPP-4) inhibitor class of drugs.

Savolitinib(Volitinib; AZD-6094; Volitinib) is an orally bioavailable inhibitor of the c-Met receptor tyrosine kinase(IC50= 5 nM) with potential antineoplastic activity.

Salubrinal is a selective inhibitor of eIF2α dephosphorylation and inhibits ER stress-mediated apoptosis with EC50 of ~15 μM.

Sal003 is a potent cell-permeable analog of the eIF2α phosphatase inhibitor Salubrinal with enhanced aqueous solubility.

Safinamide mesylate is a third-generation reversible MAO-B inhibitor, which also blocks sodium voltage-sensitive channels and modulates stimulated release of glutamate.

S3I-201 (NSC 74859) is a Stat3 inhibitor with IC50 of 86 μM.

S0859, an N-cyanosulphonamide compound, reversibly inhibit NBC-mediated pH(i) recovery (K (i)=1.7 microM, full inhibition at approximately 30 microM).

RU 24969 hemisuccinate is a potent SR-1A/SR-1B and moderate SR-2C agonist that may also release serotonin.

RS 504393 is a selective CCR2 chemokine receptor antagonist (IC50 values are 98 nM and > 100 μM for inhibition of human recombinant CCR2b and CCR1 receptors respectively).

Ropivacaine Hydrochloride Monohydrate is used as a local anesthetic.

RK-33 is a novel DDX3 inhibitor for lung cancer therapy.

Riluzole is a glutamate antagonist used as an anticonvulsant and to prolong the survival of patients with amyotrophic lateral sclerosis.

RGX-104 is an orally bioavailable agonist of the nuclear receptor liver X receptor beta (LXRbeta; NR1H2; LXR-b), with potential immunomodulating and antineoplastic activities.

RG108 is an inhibitor of DNA methyltransferase with IC50 of 115 nM, does not cause trapping of covalent enzymes.

Reversine, a small synthetic purine analogue (2,6-disubstituted purine), is a potent inhibitior of Aurora A/B/C with IC50s of 150-500 nM.

Retigabine is a novel anti-convulsant, enhances activation of KCNQ2/Q3 potassium channels.

Rebaudioside C(Dulcoside B) is used as natural sweeteners to diabetics and others on carbohydrate-controlled diets.

Rbin-1 is a potent, reversible, and specific chemical inhibitor of eukaryotic ribosome biogenesis. Rbin-1 inhibits the ATPase with GI50 of 136±7 nM.