An ellagitannin, n-butyl gallate, two aryltetralin lignans, and an unprecedented diterpene ester from Pelargonium reniforme

Four phenolic metabolites (pelargoniin E, n-buyl gallate, an aryltetralin lignan and, a unique diterpene ester, reniformin) together with five rarely reported compounds were isolated from Pelargonium reniforme.