C3H9N is the chemical formula for a compound known as propylamine. It consists of three carbon atoms, nine hydrogen atoms, and one nitrogen atom. Propylamine is classified as an amine, which means it contains a nitrogen atom bonded to carbon and hydrogen atoms. It is commonly used in the production of pharmaceuticals, agrochemicals, and as a solvent in various chemical reactions. This compound can exist in different structural forms, including n-propylamine and isopropylamine. Its properties make it useful in organic synthesis and as a building block for more complex molecules. Due to its nitrogen content, propylamine can also participate in reactions typical of amines, such as forming salts with acids.