CH₃I, or methyl iodide, is a colorless, volatile liquid with a sweet odor. It is an organic compound that consists of one carbon atom, three hydrogen atoms, and one iodine atom. Methyl iodide is primarily used in organic synthesis and as a methylating agent in chemical reactions. Due to its reactivity, CH₃I can be hazardous and is classified as a potential carcinogen. It is important to handle it with care in laboratory settings. Methyl iodide is also used in the production of certain pharmaceuticals and agrochemicals, making it significant in the fields of chemistry and agriculture.