SKLB610, a novel multi-targeted inhibitor, inhibits angiogenesis-related tyrosine kinase VEGFR2, FGFR2 and PDGFR at rate of 97%, 65% and 55%, respectively, at concentration of 10 μM in biochemical kinase assays.

SKLB1002 is a novel and potent VEGFR-2 inhibitor with an IC50 value of 32 nM.

SKF-86002 is a potent inhibitor of p38 MAP kinase wit IC50 of 0.5-1 uM; inhibits LPS-induced IL-1 and TNF-α production in human monocytes (IC50 = 1 μM).

Skepinone-L is a selective p38α-MAPK inhibitor with IC50 of 5 nM.

Sitravatinib (MGCD516) is a novel small molecule inhibitor targeting multiple RTKs involved in driving sarcoma cell growth, including c-Kit, PDGFRβ, PDGFRα, c-Met, and Axl.

Sitaxentan sodium (TBC-11251) is a selective endothelin receptor-A antagonist with IC50 and Ki of 1.4 nM and 0.43 nM, respectively.

Sirtinol is a cell-permeable, specific inhibitor of sirtuin NAD-dependant histone deacetylases.

SIRT2 Inhibitor II, AK-1 inhibits SIRT2 selectively over SIRT1 and SIRT3.

Siramesine(Lu 28-179) is a selective sigma-2 receptor agonist, which has been shown to trigger cell death of cancer cells and to exhibit a potent anticancer activity in vivo.

Siramesine(Lu 28-179) Hcl is a selective sigma-2 receptor agonist, which has been shown to trigger cell death of cancer cells and to exhibit a potent anticancer activity in vivo.

Sildenafil is a Phosphodiesterase 5 Inhibitor with IC50 of 5.22 nM.

SHP099 is a selective, orally bioavailable, and efficacious SHP2 inhibitor with IC50 =0.07 μM and p-ERK modulation in cells IC50 = 0.250 μM.

SGX-523 is a selective Met inhibitor with IC50 of 4 nM, no activity to BRAFV599E, c-Raf, Abl and p38α.

SGI-1776 is a novel ATP competitive inhibitor of Pim1 with IC50 of 7 nM; 50- and 10-fold selective versus Pim2 and Pim3, also potent to Flt3 and haspin.

SGI-1027 is a potent and selective inhibitor of DNA methyltransferase (DNMT) with IC50 of 6, 8, 7.5 μM for DNMT1, DNMT3A, and DNMT3B, respectively.

SGC 707 is a potent allosteric inhibitor of protein arginine methyltransferase 3 (PRMT3) (IC50 = 31 nM).

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.

Senicapoc(ICA17043) is a potent and selective Gardos channel blocker; blocked Ca(2+)-induced rubidium flux from human RBCs/ inhibited RBC dehydration with IC50s of 11 nM/30 nM, respectively. IC50 value: 11/30 nM [1] Target: Gardos channel in vitro: I

Semaxanib (SU5416) is a potent and selective VEGFR(Flk-1/KDR) inhibitor with IC50 of 1.23 μM, 20-fold more selective for VEGFR than PDGFRβ, lack of activity against EGFR, InsR and FGFR.

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

Selective ERK inhibitor (IC50 values are 0.14 and 0.31 μM for ERK2 and ERK1 respectively). Displays 30-fold selectivity for ERK over p38α (IC50 = 10 μM); displays no activity against human recombinant MEK1, MKK4, IKKα, PKCα, Src, Syc and PDGFα.

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.

Seclidemstat(SP-2577) is a potent LSD1 inhibitor, with a mean IC50 of 127 nM.

SDMA (Symmetric dimethylarginine) is an endogenous inhibitor of nitric oxide (NO) synthase activity.

SD-208 is a potent, orally active ATP-competitive transforming growth factor-β receptor 1 (TGF-βRI) inhibitor (IC50= 49 nM)

Scriptaid(Scriptide; GCK-1026) is an inhibitor of HDAC; shows a greater effect on acetylated H4 than H3.