... - epoxy isobenzofuran -1,3 - dione. Molecular formula and molecular weight C10H12O Cantharidin [Chemical name] hexahydro-3a, 7a ... epoxy isobenzofuran -1,3 - dione. [Molecular formula and molecular weight] C10H12O4, 196. This product is rhombus physical ... Indications mainly for liver cancer, breast cancer, lung cancer, esophageal cancer, colon cancer treatment. Cantharidin for cancer and heavy illness