Tags: Chemical Compound, Chemical Substance.
Phenothiazine is an organic compound that occurs in various antipsychotic and antihistaminic drugs. It has the formula S(C6H4)2NH. This yellow tricyclic compound is soluble in acetic acid benzene and ether. The compound is related to the thiazine-class of heterocyclic compounds. Derivatives of the parent compound find wide use as drugs.