C2H5NO3 is the chemical formula for a compound known as ethyl nitrate. It consists of two carbon (C) atoms, five hydrogen (H) atoms, one nitrogen (N) atom, and three oxygen (O) atoms. Ethyl nitrate is a colorless liquid that is often used in organic synthesis and as a fuel additive. This compound is classified as an ester and is known for its explosive properties under certain conditions. Ethyl nitrate can be produced through the reaction of ethanol with nitric acid. Due to its reactivity, it must be handled with care in laboratory and industrial settings.