存在于天然植物中的一种三萜类化合物。不溶于水,溶于2%酒精的NaOH,溶于热冰醋酸,中度溶于丙酮,微溶于醇、醚、氯仿和二硫化碳。;Ursolic acid belongs to the class of triterpenoid compounds that occurs widely in medicinal herbs, food and other plants. It may possess pharmacological properties like hepta-protection, analgesic, cardiotonic, sedative and tonic effects.An anti-angiogenic and anti-proliferative agent