Urolithin M5 (CAS No 91485-02-8) is a bioactive metabolite of ellagic acid researched primarily in the fields of cancer and aging due to its potential therapeutic benefits It originates from the human gut microbiota following the ingestion of ellagitannins found in foods like pomegranates and berries The compound is known to modulate key cellular pathways including antioxidant and anti-inflammatory processes and has been studied for its ability to inhibit cell proliferation by targeting molecular pathways involved in cancer cell growth In vitro Urolithin M5 exhibits activity in the nanomolar to low micromolar range demonstrating significant potential in various experimental models It is commonly used in cell-based assays and animal studies to explore its effects on cellular health and longevity as well as its role as a candidate for drug screening in oncology research Experimental concentrations typically depend on the specific research design