Assertion: arnica's compound | /r/Synonym | helenalin
Facets:
Source sentences:
text: Arnica contains a compound known as helenalin, an allergen that may cause contact dermatitis in some persons.
text: The main active compounds of arnica are sesquiterpene lactones such as helenalin, dihydrohelenalin, and their derivatives .
text: Arnica’s anti-inflammatory activity activity is probably due to a number of agents, including a compound known as helenalin.