Heliosupine, heliosupine N-oxide, 3 ′-O-acetylheliosupine N-oxide,and 7-O- angeloylechinatine N-oxide show inhibition activity against the acetylcholinesterase(AChE), with IC50 0.53-0.60 mM. Heliosupine can deter feeding by the polyphagous larvae of Spodoptera exigua.

Cell-permeable calmodulin (CaM) agonist that binds to the EF-hand/Ca2+-binding site; produces CaM-dependent activation of phosphodiesterase. Also binds to cytoplasmic sites on other Ca2+ channels, including NMDA and HIV-1 gp120-activated channels, inhibiting Ca2+-mediated cytotoxicity and apoptosis (IC50 = 52 μM). Shown to protect pancreatic acinar cells from gossypol induced necrosis. Inhibits VLA-5-mediated adhesion of mast cells to fibronectin in vitro and attenuates inflammatory cell influx in guinea pig lung in vivo.

Isopropylphthalimide is an agent of Agricultural Chemical.