Sodium bromide (NSC 77384; Sanibrom 40) is a GABA-ergic system modulator that crosses the blood-brain barrier, and it effectively reduces and blocks epileptiform discharges. Sodium bromide exerts significant anticonvulsant effects by enhancing GABA-ergic inhibitory functions, such as increasing the amplitude of inhibitory postsynaptic currents and paired-pulse inhibition. Sodium bromide specifically enhances stimulation-induced extracellular alkalosis without affecting baseline pH or subsequent acidosis processes. Sodium bromide exhibits species-specific pharmacokinetic characteristics, competes with chloride ions for renal tubular reabsorption sites, and serves as a marker for extracellular fluid volume. Sodium bromide can be used in the research of epilepsy and related neurological diseases.

SNA C(Bz) amidite is a phosphoramide monomer that can be used to synthesize oligonucleotides.

SNA A(Bz) amidite is a phosphoramide monomer that can be used to synthesize oligonucleotides.

SMTIN-P01 is a TRAP1 inhibitor that is selective for cytosolic Hsp90 and accumulates in mitochondria. SMTIN-P01 binds to the ATP-binding site of TRAP1 as an ATP mimic, thereby inhibiting ATPase and foldase activities. SMTIN-P01 induces mitochondrial membrane depolarization and proteolytic degradation in cancer cells. SMTIN-P01 exhibits significant cytotoxicity, but shows extremely low toxicity to primary mouse hepatocytes, and does not interfere with SIRT3-related functions or the levels of cytosolic Hsp90 substrates. SMTIN-P01 has important application value in cancer-related research.

SM-15178 is a potent, orally active and selective leukotriene B4 (LTB4) receptor antagonist with an IC50 of 0.30 μM. SM-15178 attenuates LTB4-induced neutrophil accumulation in mouse skin and bronchoconstriction in guinea pigs. SM-15178 emonstrates significant anti-inflammatory efficacy across multiple animal models of inflammation. SM-15178 can be used for the research of chronic inflammatory diseases such as inflammatory bowel disease, psoriasis, and asthma.

SM-122 is a monovalent Smac mimetic targeting cellular inhibitor of apoptosis protein (cIAP)-1/2. SM-122 can induce cIAP-1/2 degradation and weakly induce apoptosis in tumor cells. SM-122 can be used for the research of cancer, such as breast cancer.

SM-11044 is a β-adrenoceptor agonist with Ki values of 18.1 μM (β1), 4.1 μM (β2) and 1.3 μM (β3), showing higher binding selectivity for the β3-adrenoceptor. SM-11044 stimulates cAMP accumulation in cells expressing this receptor. SM-11044 mediates ileal relaxation, tracheal relaxation, pulmonary parenchymal relaxation, increased right atrial heart rate and adipocyte lipolysis.

SM00465 (Compound 207) is a Cbl-b inhibitor-linker conjugate composed of INT4 and Linker. SM00465 can be used for ADC synthesis. SM00465 is applicable to the research of immune-related diseases.

SK-129 is a blood-brain barrier-permeable inhibitor of α-synuclein (αS) oligomers with a Kd of 221 nM. SK-129 preferentially binds to neurotoxic αS oligomers over physiological αS monomers, inhibits αS aggregation, blocks the interaction and co-aggregation of αS with tau protein, and prevents the maturation of αS-tau condensates into amyloid aggregates. SK-129 reduces ROS production, rescues dopaminergic neuron degeneration, improves motor function, restores endogenous dopamine synthesis, increases the number of Tyrosine Hydroxylase-positive neurons, prevents brain histopathological changes, alleviates neuroinflammation, and improves survival rates in relevant models. SK-129 can be used in research related to Parkinson's disease (PD) and Lewy body dementia (LBD).

SIRT2-IN-18 (Compound 8) is a SIRT2 inhibitor with IC50s of 5.3  and 12.3 μM for SmSIRT2 and hSIRT2, respectively. SIRT2-IN-18 shows potent antischistosomal activities against both Liberian and Puerto Rican strains of Schistosoma mansoni and reduces schistosomula and adult worm pair viability, pairing, and egg production, with low cytotoxicity in mammalian cells. SIRT2-IN-18 increases histone H3 hyperacetylation and induces cytochrome c-mediated apoptosis.

SIMR-2418 is an effective inhibitor of the main protease (Mpro) of SARS-CoV-2, with an IC50 value of 20.7 μM. SIMR-2418 can be used for research on SARS-CoV-2 virus infection.

Simotaxel (MST 997) is an orally active derivative of the taxane class. Simotaxel binds to β-tubulin and promotes tubulin polymerization (EC₅₀ = 0.9 μM), inhibits tubulin depolymerization, and causes cell cycle arrest at the G₂-M phase. Simotaxel disrupts the formation of the mitotic spindle and triggers the caspase-dependent apoptotic pathway (apoptosis). Simotaxel has inhibitory effects on Paclitaxel sensitive cell lines and overcomes drug resistance. Simotaxel can be used to study Paclitaxel / Docetaxel resistant solid tumors.

Simeton is a methoxy-5-triazine herbicide used for weed control in agricultural crops including corn, wheat, maize, and barley. Simeton is a methoxy-5-triazine herbicide widely used for weed control in agricultural crops including corn, wheat, maize, and barley.

SIAIS001 is a potent and orally active PROTAC ALK degrader with a DC50 of 3.9 nM. SIAIS001 induces G1/S phase cell cycle arrest and inhibits proliferation of SR cells (IC50 = 0.9 nM). SIAIS001 can be used for non-small cell lung cancer (NSCLC) and anaplastic large-cell lymphomas (ALCLs) research. (Pink: Anaplastic lymphoma kinase (ALK) ligand ; Blue: TNF Receptor ligand ; Black: linker).

SHP2-IN-46 is an orally active SHP2 inhibitor (IC50 = 11.76 μM). SHP2-IN-46 inhibits SHP2 enzymatic activity and mediates anti-tumor activity. SHP2-IN-46 suppresses cell proliferation in various cancer cells. SHP2-IN-46 can be used in research related to lung adenocarcinoma, pancreatic cancer and hepatoblastoma.

SHK1112218 is an orally active mitochondrial proton carrier with an EC50 of 0.48 μM. SHK1112218 restores proton transport and increases oxygen consumption rate. SHK1112218 can be used for the research of diabetes, obesity, and metabolic dysfunction-associated steatotic liver disease.

SH-273 is a dual targeting compound. SH-273 has dual function to stimulate STING function (EC50: 100 nM) and inhibits PI3Kγ (IC50: 7 nM). SH-273 can be used in the research of pancreatic cancer.

SGS-518 is a selective 5-HT6R antagonist. SGS518 can be used for the research of cognitive impairments such as amnesia, anxiety and depression, and it is effective in protecting mouse retina at high doses.

SGK1-IN-9 (Compound 1) is a SGK1 inhibitor. SGK1-IN-9 can be used in cancer research.

SGK1-IN-8 (compound 55) is a SGK1 and GSK3β inhibitor, with an IC50 of 0.11 μM against human SGK1 and an IC50 of 3.39 μM against human GSK3β. SGK1-IN-8 inhibits the catalytic activities of SGK1 and GSK3β, and reduces the phosphorylation level of TAU protein at the Ser214 site. SGK1-IN-8 is available for the research of Alzheimer's disease.

SGK1-IN-7 is a blood-brain barrier-permeable SGK1 inhibitor with an IC50 of 0.72 μM. SGK1-IN-7 reduces the phosphorylation level of TAU protein at the Ser396 and Ser214 epitopes. SGK1-IN-7 antagonizes the toxicity induced by Okadaic acid. SGK1-IN-7 can be used in the research of Alzheimer's disease.

SG-210 (SPR 210) is an orally active and selective aldose reductase (AR) inhibitor. SG-210 has IC50 values of 9.5 nM and 10 nM for AR from porcine lens and human placenta, respectively. SG-210 can inhibit sorbitol accumulation and ameliorate diabetic neuropathy and retinopathy in Streptozotocin-induced diabetic rats. SG-210 can be used in the research of diseases such as diabetes-related complications.

Serotonin O-phosphate is a metabolite of Tryptamine.

SePP is a blood-brain barrier-permeable NMDAR antagonist and dopamine/norepinephrine reuptake inhibitor, with a Ki of 28.7 nM for rat NMDAR. SePP exerts anticonvulsant effects. SePP can be used in research related to fragile X syndrome.

Sepetaprost (ONO-9054) is a dual agonist of prostaglandin E3 receptor and prostaglandin F receptor. Sepetaprost can reduce intraocular pressure and can be used for the researches of ocular hypertension and open angle glaucoma.

Senkyunolide R is a phthalide compound that can be naturally extracted from the dried rhizomes of Ligusticum chuanxiong HORT.

Selnoflast (RO7486967) monopotassium, formerly somalix/RG6418/IZD334 monopotassium, is an orally active, potent, selective and reversible small molecule NLRP3 inflammasome inhibitor. Selnoflast monopotassium is a potent inhibitor of IL-1β release stimulated by NLRP3 activation in human Alzheimer's disease (AD) monocyte-derived macrophages. Selnoflast monopotassium is promising for research of AD and systemic inflammatory diseases, such as ulcerative colitis and chronic obstructive pulmonary disease.

Seletinoid G is a retinoic acid receptor (RAR) agonist. Seletinoid G can repair altered connective tissue in old skin and inhibit UV-induced collagen deficiency in young skin. Seletinoid G can be used for skin aging and photoaging research.

Selenotifen (BN 52256) is an antiallergic agent. Selenotifen is a highly potent antagonist to PAF receptors. Selenotifen exhibits a statistically significant antiarrhythmic effect.

Selenodiglutathione (GSSeSG) is a selenotrisulfide and the major selenium metabolite conjugated with two glutathione moieties. Selenodiglutathione induces DNA damage, base oxidation, strand breaks, apoptosis. Selenodiglutathione exhibits cytotoxicity against breast cancer cells via preferential cellular uptake and elevation of intracellular selenium levels. Selenodiglutathione is applicable to research related to breast cancer.