(3R,5aS,6R,8aS,9R,12S,12aR)-Octahydro-3,6,9-trimethyl-3,12-epoxy-12H-pyrano[4,3-j]-1,2-benzodioxepin-10(3H)-one,(3R,5aS,6R,8aS,9R,12S,12aR)-Octahydro-3,6,9-trimethyl-3,12-epox12H-pyrano[4,3-j]-1,2-benzodioxepin-10(3H)-one,"Active antimalarial constituent of the tradional Chinese medicinal herb Artemisia annua L., Compositae, which has been known for almost 2000 years as Qinghao. Antimalarial.",Artemisinin API
