Valproic Acid (2-Propylpentanoic Acid) is an HDAC inhibitor that inhibits HDAC1 activity, induces HDAC2 degradation, and is orally active. Valproic Acid can be used in epilepsy and bipolar disorder research.

Valproic acid sodium salt (Sodium Valproate) is the sodium salt form of valproic acid with anti-epileptic activity. Valproic acid sodium salt is converted into its active form, valproate ion, in blood. Although the mechanism of action remains to be elucidated, Valproic acid sodium salt increases concentrations of gamma-aminobutyric acid (GABA) in the brain, probably due to inhibition of the enzymes responsible for the catabolism of GABA. This potentiates the synaptic actions of GABA. Valproic acid sodium salt may also affect potassium channels, thereby creating a direct membrane-stabilizing effect.

1. Carvacrol (O-Thymol) presents anxiolytic effects. 2. 5-Isopropyl-2-methylphenol presents antinociceptive activity. 3. Carvacrol presents antidepressant effects, seems to be dependent on its interaction with the dopaminergic system, but not with the serotonergic and noradrenergic systems.

CB-103 is a orally active inhibitor of notch signaling pathway, with anti-tumor activity.

Tangeretin (NSC-618905), a flavonoid from citrus fruit peels, has been proven to play an important role in anti-inflammatory responses and neuroprotective effects in several disease models and was also selected as a Notch-1 inhibitor.