Assertion: epinephrine | /r/HasProperty | darken on exposure
Facets:
value: gradually
type: TEMPORAL
value: to air
type: TRANSITIVE-OBJECT
value: to light
type: CAUSE
Source sentences:
text: Epinephrine, epinephrine salts, and preparations containing the drug gradually darken on exposure to light and air and must be stored in tight, light-resistant containers.a 167