Methyl malonyl chloride we deal in is an organic compound and the acyl chloride derivative of malonic acid. This is also known as the simplest three-carbon diacid chloride. This is functional as a colorless liquid that has less impurities. This is utilized as a reagent in organic fusion. In addition, it is functional as an optimum pharmaceutical intermediate, which is added in some anti-cancer drugs. Methyl malonyl chloride is utilized as a bifunctional compound, suited for the preparation of several cyclic compounds.