SPR-00305 is a potent MvfR inhibitor and displays target engagement.

SPOP-IN-6b is a potent, small-molecule E3 Ligase adaptor SPOP (speckle-type POZ protein) inhibitor that inhibits the SPOP-substrate protein interaction with IC50 of 35 uM (inhibits puc-SBC1 peptide binding to SPOP).

SPL-707 (SPL707) is the first selective, orally active signal peptide peptidase-like 2a (SPPL2a) inhibitor with IC50 of 77 nM, shows 25-fold selectivity over γ-secretase and SPP.

Spiropiperidine 1 (SPP1)i s a potent, functionally selective and brain penetrant M1 orthosteric agonist with Ki of 21.3 nM for hM1 receptors.

Spiropiperidine 1 (SPP1)i s a potent, functionally selective and brain penetrant M1 orthosteric agonist with Ki of 21.3 nM for hM1 receptors.

Spirodiclofen is a broad spectrum acaricide acting via lipid biosynthesis inhibition (LBI) with no cross resistance to currently available acaricides and with additional insecticidal properties.

Spiradoline (U 62066) is a potent, highly selective κ-opioid agonist that has analgesic diuretic and antitussive effects..

Spiradoline (U 62066) is a potent, highly selective κ-opioid agonist that has analgesic diuretic and antitussive effects..

SPI009 is a novel antipersister compound active against P. aeruginosa.

Sphynolactone-7 (SPL7) is a potent, specific, femtomolar-range suicide germination stimulant for the parasitic plant Striga hermonthica with minimum effective concentration (MEC) of 10 fM that produces any seed germination.

Sphynolactone-7 (SPL7) is a potent, specific, femtomolar-range suicide germination stimulant for the parasitic plant Striga hermonthica with minimum effective concentration (MEC) of 10 fM that produces any seed germination.

Spastazoline is a potent and selective spastin (a microtubule-severing AAA protein) inhibitor, with an IC50 of 99 nM for Human spastin. Spastazoline shows no effect on ATPase activity of a recombinant human VPS4.

SPA70 is a potent and selective hPXR antagonist (IC50=0.51 uM) that interacts with the ligand-binding domain (LBD) of hPXR, inhibits hPXR in human hepatocytes and mouse models and enhances the chemosensitivity of cancer cells.

SP 4206 is a high-affinity (Kd=70 nM) small molecule that blocks blocks the binding of the IL-2α receptor (IL-2Rα) to IL-2.

Sovaprevir (ACH-1625, ACH-0141625) is a potent HCV NS3/4A inhibitor in development for the treatment of hepatitis C..

Sortin1 is a small molecule sorting inhibitor (Sortin) that induces reversible defects in vacuole biogenesis and root development in Arabidopsis seedlings at 100 mg/liter (227 uM).

Sophocarpine

Sodium Sulfadiazine is a sodium salt form of sulfadiazine, an intermediate-acting bacteriostatic, synthetic sulfanilamide derivative.

Sodium Picosulfate inhibits absorption of water and electrolytes, and increases their secretion.

Sodium L-lactate is used as a food additive, preservative, acidity regulator and bulking agent.

sodium 4-pentynoate is a alkynylacetate analogue; can be metabolically incorporated onto cellular proteins through biosynthetic mechanisms for profiling of acetylated proteins in diverse cell types.

SOD1-Derlin-1 inhibitor 56-59 is a cell-permeable, small molecule inhibitor of SOD1-Derlin-1 interaction, target SOD1 DBR and clearly attenuates the interactions of Derlin-1 with 122 types of SOD1mut in the cell-based co-immunoprecipitation assay.

SNX-9114 (SNX9114, PF-04944733) is a small molecule Hsp90 inhibitor with excellent brain permeability..

SNX-0723 is a selective, brain-permeable, orally acitve small-molecule inhibitor of Hsp90 (IC50=14 nM) that inhibits alpha-synuclein oligomerization with EC50 of 48 nM.

SNVP is an S-nitrosothiol that acts as a nitric oxide (NO) donor and vasodilator.

SNIPER(ER)-110 is a nongenetic IAP-dependent protein eraser (SNIPER) targeting estrogen receptor α (ERα), induces ERα degradation and induces apoptosis in MCF-7 human breast cancer cells.

SNIPER(AR)-51 is a specific and nongenetic, protein degradation inducer of androgen receptor, consistiong of AR ligand and IAP ligand and linker.

SNAP-94847 is a selective, high-affinity, and competitive MCH1 receptor (MCH1-R) antagonist with Ki of 1.69 nM.

SNAP-7941 is a selective, high-affinity, and competitive MCH1 receptor (MCH1-R) antagonist with Ki of 15 nM.

SN79 dihydrochloride (Sigma receptor ligand SN79) is a putative σ receptor antagonist with nanomolar affinity and selectivity for σ receptors over 57 other binding sites.