Compound Monograph
Calein A
Calein A is a sesquiterpene lactone isolated from Calea species ("bitter grass").
Sources · 1
Where Does It Come From?
Calein A is a naturally occurring sesquiterpene lactone, found in Bitter grass.
Concentration
Content by Source
Concentrations not reported. No percent-dry-weight or mg/g figures have been published for this compound in its source plants.
Research & Evidence
Calein A is a sesquiterpene lactone (a germacranolide-type compound) isolated from Calea species, the group of “bitter grass” plants. Beyond its identification and structural characterization from these plants, little is established about its biological activity.
