Assertion: opium's alkaloid | /r/HasProperty | identified in the laboratory
Facets:
value: including those responsible
type: OTHER
value: including the indole alkaloid mitragynine
type: OTHER
Source sentences:
text: More than 20 alkaloids in kratom have been identified in the laboratory, including those responsible for the majority of the pain-relieving action, the indole alkaloid mitragynine, structurally related to yohimbine.