The Molluscicidal Component Isolation and Structure Determination of Solanum xanthocarpum

A new molluscicidal chemical substance,with the relative molecular weight of 722 and molecular formula as C39H64O11N has been extracted from the unripe berries of Solanum xanthocarpum originated from the plain and lakes area of the middle and lower reaches of Yangtze River. Its structure determined by chemical and spectrometric methods is similar to that of Khasianine with the skeleton of solasodine. The purified sample from Solanum xanthocarpum has a lethality of 100% against Oncomelania hupensis by immersing the snails for 48 h at 0.580 0 mg/L.