17-Hydroxyjolkinolide A
17-Hydroxyjolkinolide A (Caudicifolin; Fischeriana A) is an insect feeding inhibitor isolated from the roots of spurge. 17-Hydroxyjolkinolide A induces grain aversion in S. zeamais and T. castaneum adults, with EC50s of 631.9 ppm and 656.5 ppm, respectively.