| Compound | Description |
|---|
| parthenolide | a germacrane type of sesquiterpene lactone; found in Tanacetum parthenium and Magnolia grandiflora L; has antineoplastic activity; RN given refers to cpd without isomeric designation; structure |
| Water | A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
| Oxygen | An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration. |
| costunolide | an antipyretic; wood oil from tree Eremanthus elaegnus used as chemoprophylactic agent in schistosomiasis; structure |