Ursonic acid methyl ester is an esterified derivative of Ursolic acid . Ursonic acid methyl ester shows growth inhibitory activity against four tumor cell lines, HL-60, BGC, Bel-7402 and Hela with ED50 values of >100 µg/ml[1].
[1]. Chao-Mei Ma, et al. The cytotoxic activity of ursolic acid derivatives. Eur J Med Chem. 2005 Jun;40(6):582-9.
















