1.CAS:78287-27-1 2.Molecular formula:C22H20N2O4 3.M.W: 376 4.Purity:99% 1.Name:7-Ethyl-Camptothecin2.Source:Camptotheca acuminata Decne3.Storage:airtight,shading,moistureproof4.Packing:10kg/fiber Drum5.Function:anti-cancer6.manufacture of plant extract,we can provide you the 7-Ethyl-Camptothecin 100kg/month.