SUVN-502 (SUVN502) is a potent, selective, brain penetrant and orally active 5-HT6 receptor antagonist with Ki of 2.04 nM.

Surfen is a small molecule antagonist of heparan sulfate, binds to heparin, low molecular weight heparins, and to HS and other GAGs.

Surfen hydrate is a small molecule antagonist of heparan sulfate, binds to heparin, low molecular weight heparins, and to HS and other GAGs.

Suprofen (Profenal)

Suplatast tosylate

Sunifiram (DM-235) is a piperazine derived ampakine-like drug which has nootropic effects in animal studies with significantly higher potency than piracetam.

Sumatriptan succinate is a serotonin1 (5-HT1) receptor agonist, which is effective in the acute treatment of migraine headache.

Sulisobenzone is an ingredient in some sunscreens which protects the skin from damage

Sulindac (Clinoril)

Sulfinpyrazone is one of the most studied platelet COX inhibitors, also a uricosuric agent that competitively inhibits uric acid reabsorption in kidney proximal tubules.

Sulfathiazole is an organosulfur compound that has been used as a short-acting sulfa drug.

Sulfasalazine, a sulfa agent and a derivative of mesalazine, is used primarily as an anti-inflammatory agent.

Sulfamethizole (Proklar)

Sulfameter (Bayrena)

Sulfadoxine (Sulphadoxine)

Sulfabenzamide is an antibacterial/antimicrobial which also exhibit their antitumor effects through multiple mechanisms including inhibition of membrane bound carbonic anhydrases, prevention of microtubule assembly, cell cycle arrest, and inhibition of an

Sulbactam sodium (Unasyn)

Sulbactam

Sudemycin K is a synthetic antitumor splicing inhibitor with IC50 of 15 nM (MCL1 alternative splicing regulation), shows cytotoxicity in HeLa cells with IC50 of 2.3 nM.

Sudemycin E is an alternative splicing inhibitor that binds to the U2 small nuclear ribonucleoprotein (snRNP) component SF3B1, causes a rapid change in alternative pre-messenger RNA splicing.

Sucralose is a low-calorie artificial sweetener.

Sucralfate is a sucrose sulfate-aluminium complex that binds to the ulcer, creating a physical barrier that protects the gastrointestinal tract from stomach acid and prevents the degradation of mucus

Suberylglycine is an acyl glycine, which is a normally minor metabolite of fatty acid.

Suberohydroxamic acid is a competitive HDAC inhibitor with IC50 values of 0.25 and 0.3 μM for HDAC1 and HDAC3 respectively.

SU-11752 is a potent, selective inhibitor of DNA-PK, >500-fold selectivity over PI3Kγ, inhibits DNA double-strand break repair in cells and sensitizs ionizing radiation in cancer cells..

SU 4313 is a bioactive chemical.

Strontium Ranelate is a bone metabolism modulator that inhibits bone resorption while maintaining bone formation. Commonly used as an antiosteoporotic.

S-Trityl-L-cysteine (NSC 83265) is a potent, cell-permeable, selective inhibitor of mitotic kinesin Eg5, inhibits basal ATPase activity (IC50=1 mM) and microtubule-activated ATPase activity of Eg5 (IC50=140 nM).

Streptonigrin (Bruneomycin, NSC 45383) is a potent, selective, and irreversible PAD4 inactivator with IC50 of 1.87 uM, also binds directly to RAD54 with Kd of 9.1 uM, inhibits ATPase and DNA branch migration activity of RAD54.

STING CDN agonist IFM Therapeutics is a synthetic cyclic dinucleotide (CDN) agonist of STING, stimulates potent immunity against cancer..