Limonin (Standard) is the analytical standard of Limonin. This product is intended for research and analytical applications. Limonin inhibits HIV-1 with an EC50 of 60.0 µM. Limonin induces human colon adenocarcinoma cells apoptosis with an IC50 of 54.74 µM. Limonin has antiviral and antitumor activities[1][2][4].