Chloromethyl methyl carbonate（Cat No.:R054166）is a reactive organic compound featuring a chloromethyl group and a methyl carbonate moiety. It is widely used as a versatile reagent in organic synthesis, particularly for introducing methoxycarbonyl-protecting groups (MOC protection) on amines and alcohols. Its electrophilic chloromethyl group facilitates nucleophilic substitution reactions, making it useful in peptide synthesis and medicinal chemistry. Additionally, it serves as a mild carbonylating agent in functional group transformations. Due to its reactivity and volatility, proper handling and storage are essential. This compound is valued for selective and efficient derivatization strategies.