V4O10, or vanadium pentoxide, is a chemical compound consisting of vanadium and oxygen, represented by the formula V4O10. It is commonly used as a catalyst in various chemical reactions, particularly in the production of sulfuric acid and in the oxidation of organic compounds. Additionally, vanadium pentoxide has applications in the manufacture of ceramics, glass, and as a pigment. Its distinctive properties are also of interest in the field of energy storage, particularly in vanadium redox flow batteries.