Assertion: blister beetle's cantharidin | /r/HasProperty | principal irritant
Facets:
value: in "spanish fly"
type: LOCATION
Source sentences:
text: Cantharidin is the principal irritant in "Spanish fly", a folk medicine prepared from dried beetles in the family Meloidae.
text: Cantharidin, the principal active component in preparations of Spanish fly, was first isolated and named in 1810 by the French chemist Pierre Robiquet, who demonstrated that it was the principal agent responsible for the aggressively blistering properties of this insect's egg coating.