This presentation summarizes common phytochemical assays used to detect various phenolic compounds in plants. It discusses assays to detect phenols, phenolic acids, flavonoids, tannins, quinones, and more. Specific compounds that can be detected are highlighted, along with the color reactions produced in each assay. Thin layer chromatography is also described as a method to separate compounds like phenolic acids and cinnamic acids. References are provided for additional information on phytochemical methods.