Iodomethane, also known as methyl iodide, is a chemical compound with the formula CH₃I. It is a colorless, volatile liquid that has a sweet odor. Iodomethane is primarily used in organic synthesis and as a methylating agent, which means it can add a methyl group to other molecules. This compound is also utilized in the production of pesticides and pharmaceuticals. However, it is important to handle iodomethane with care, as it is toxic and can pose health risks if inhaled or absorbed through the skin. Proper safety measures are essential when working with this substance.