Methylene dichloride (DCM, or methylene chloride, or dichloromethane) is a geminal organic compound with the formula CH2Cl2. This colorless, volatile liquid with a moderately sweet aroma is widely used as a solvent. Although it is not miscible with water, it is miscible with many organic solvents.

DCM's volatility and ability to dissolve a wide range of organic compounds makes it a useful solvent for many chemical processes