An endotoxin of E. thaxteriana Petch fungus exhibiting a contact insec
ticide effect has been isolated and studied. Based on the data obtaine
d, a previously unpublished structure of the toxin was proposed, which
is presented by a series of compounds corresponding to the general fo
rmula 1,2-O-dialkanoyl-sn-S-glyceryl heptyl hydrogen orthophosphate.