Senkyunolide I may be an active component of L. chuanxiong, traditionally used to treat migraine, it can protect rat brain against focal cerebral ischemia-reperfusion injury by up-regulating p-Erk1/2, Nrf2/HO-1 and inhibiting caspase 3, the neuroprotectiv

S-Gboxin is an active analogue of Gboxin with potent antitumour activity.

SGC-GAK-1 (GAK inhibitor 1) is a potent, selective, and cell-active inhibitor of cyclin G-associated kinase (GAK) with Ki of 3.2 nM.

Shikonin increases glucose uptake by adipocytes and myocytes and inhibits the activity of phosphatase and tensin homolog (PTEN; IC50 = 2.7 µM)

SIS3 is a potent and selective inhibitor of Smad3. a potent regulator of the human Nox4 promoter.

Sitafloxacin Hydrate is a new-generation, broad-spectrum oral fluoroquinolone antibiotic.

SJ000291942 is an activator of the canonical bone morphogenetic proteins (BMP) signaling pathway. BMPs are members of the transforming growth factor beta (TGFβ) family of secreted signaling molecules.

SJA710-6 (a Hepatic Differentiation Inducer) is a novel, potent and cell-permeable small molecule imidazopyridinamine compound that is able to induce the differentiation of rat MSCs (rMSCs) toward hepatocyte-like cells (~47% at 5 µM).

SKQ1 prevents amyloid-beta-induced impairment of long-term potentiation in rat hippocampal slices.

SL-327 is a cell-permeable vinylogous cyanamide that acts as a selective inhibitor of MEK-1 and MEK-2 (IC50 = 0.18 and 0.22 μM respectively).

SM-164 is a bivalent mimetic of Smac with Ki values of 0.31 nM, 1.1 nM and 0.56 nM for cIAP-1, cIAP-2 and XIAP, respectively

SMI is considered a general-purpose activator for DNA and RNA synthesis.

SNS-062 is a non-covalently binding inhibitor of Bruton's tyrosine kinase (BTK).

Solifenacin Hcl(YM905 Hcl; Vesicare Hcl) is a muscarinic receptor antagonist.

Solifenacin Succinate(YM905; Vesicare) is a muscarinic receptor antagonist.

SPI-112Me is a prodrug for SPI-112, which preferentially inhibits the PTPase activity of Shp2 over Shp1 and PTP1B by a factor of 20 in cell-free assays.

SRI31215 2TFA is a small molecule that acts as a triplex inhibitor of matriptase, hepsin and HGFA and mimics the activity of HAI-1/2.

SSE15206 is a microtubule depolymerizing agent that overcomes multidrug resistance.

Statil is shown to be a potent aldose reductase inhibitor.

STK321130（FLT3-IN-2）is potent FLT3 inhibitor

STO-609 is a cell-permeable inhibitor of calcium/calmodulin-dependent kinase kinases (CaMKK) isoforms CaMKKα and CaMKKβ (Ki = 80 and 15 ng/ml, respectively).

SU 4942 is a bioactive chemical.

SU 6656 is a selective inhibitor of Src kinases, Including Src, Yes, Lyn, and Fyn (IC50 = 280, 20, 130, 170 nM, respectively).

Succinobucol is a phenolic antioxidant with anti-inflammatory and antiplatelet effects.

SY-1365 is a CDK7 inhibitor. In vitro, SY-1365 inhibited cell growth of many different cancer types at nanomolar concentrations.

Syk inhibitor II is a cell-permeable, pyrimidine-carboxamide compound that selectively and reversibly blocks Syk (IC50 = 41 nM) in an ATP-competitive manner.

Tabersonine is a terpene indole alkaloid found in the medicinal plant Catharanthus roseus.

Tanshinone I is an inhibitor of type IIA human recombinant sPLA2 (IC50=11 μM) and rabbit recombinant cPLA2 (IC50=82 μM).

Targocil is a novel antibiotics against Methicillin-resistant Staphylococcus aureus (MRSA).

TCS 359, a 2-acylaminothiophene-3-carboxamide, is a potent inhibitor of FLT3 with IC50 of 42 nM.