Assertion: methadone | /r/HasProperty | synthesized at the i.g. farben laboratories
Facets:
value: in 1939
type: TEMPORAL
value: in germany
type: LOCATION
Source sentences:
text: Methadone was first synthesized at the I.G. Farben laboratories in Germany in 1939 after a long sustained research in the area of analgetics and synthetic antipyretics that began in the early 1880’s.