Assertion: blister beetle's cantharidin | /r/HasProperty | isolated as pure substance
Facets:
value: in 1810
type: TEMPORAL
value: by pierre robiquet
type: OTHER
value: chemically
type: MANNER
Source sentences:
text: Cantharidin was first isolated as a chemically pure substance in 1810 by Pierre Robiquet, a French chemist then living in Paris.