[Chemical name]:( 3 R, ,5 aS ,6 R ,8a S ,9 R ,12 S ,12 aR ) - octahydro -3,6,9- trimethyl -3,12- epoxy -12 H - pyrano [4,3- j ]-1,2 benzodioxepin -10 ( 3 H ) - one [Molecular formula]: C15H24O5 [Molecular weight]:284.35 [Producing area]:Shaanxi, China [CAS Number]:71939-50-9 [Product resource]: Dihydroartemisinin is a high-tech product which is obtained after science refining and half-synthesis process. It is an artemisinin derivative with high anti-malaria property. [Specification]: 98% Min by HPLC [Properties]: Achromatism injection form crystal; no foul smell; bitter taste. [Application scope]:Anti-malaria medicine. [Package]:25kg net weight cardboard drums (37cm diameter, 50cm height), double-decked plastic bags inside. [Storage]: Keep in sealed, shadow, cool and dry area. [Shelf life]:3 year