Salvianolic Acid A is a water-soluble phenolic acid natural product derived from Salvia miltiorrhiza, a plant in the Lamiaceae family.

Salvianolic Acid B is an active ingredient of Salvia miltiorrhiza, which has been widely applied for the management of various microcirculation-related disorders.

Sanguinarine, a benzophenanthridine alkaloid derived from the root of Sanguinaria Canadensis.

Schizandrin A is a biphenylcyclooctadiene lignan extracted from Schisandra chinensis.

Schizandrin B is a biphenylcyclooctadiene derivative isolated from Schisandra chinensis.

Schisandrol A, a dibenzocyclooctadiene lignan, is isolated from the fruit of Schisandra chinensis Baill.

Schisandrol B is a major active constituent of Schisandra chinensis.

Scoparone is a natural coumarin compound isolated from Artemisia capillaris.

Scopoletin is an inhibitor of acetylcholinesterase (AChE).

Scopolin is a coumarin isolated from Arabidopsis thaliana (Arabidopsis) roots.

Scutellarin, an active flavone isolated from Scutellaria baicalensis, can down-regulates the STAT3/Girdin/Akt signaling in HCC cells.

Secoisolariciresinol Diglucoside is the minor isomer of Secoisolariciresinol diglucoside in flaxseed.

Sennoside A is an anthraquinone glycoside found in senna (Cassia angustifolia).

Sennoside B is a potent platelet-derived growth factor (PDGF) inhibitor.

Senegenin is a major active component isolated from the root of the Chinese herb Polygala tenuifolia.

Sesamin, abundant lignan found in sesame oil, is a potent and selective delta 5 desaturase inhibitor in polyunsaturated fatty acid biosynthesis.