Keywords: Alantolactone-Sigma.png Alantolactone svg en alantolactone a white crystalline lactone C15H20O2 obtained from elecampane root 2015-07-23 http //chem sis nlm nih gov/chemidplus/name/isoalantolactone Public Domain other versions PD-USGov Uploaded with UploadWizard Sesquiterpene lactones |