Dioxane, an organic compound, also known as dioxane, 1,4-dioxane, is an organic substance, the molecular formula is C4H8O2. It is a colorless and transparent liquid, slightly fragrant, miscible with water, miscible most organic solvents. The compound is used in the manufacture of special fine chemicals such as medicine, cosmetics, and fragrance, as well as as a solvent, reaction medium, and extraction agent in scientific research.
Indolinone derivatives have in common the presence of a hydrogen bond between the C-2 carbonyl and a hydrogen donor in a side chain, generally a pyrrole ring. Indolinone displays very promising antitumor properties by inhibiting various kinase families.