MONOCHLOROACETIC ACID (MCA) (ClCH2CO2H) is a colorless or white crystalline solid, highly hygroscopic, sharp odor, inflammable, soluble in water and common organic solvent. MCAA is organochlorine compound is a useful building-block in organic synthesis. Monochloroacetic Acid (MCA) is use in the production of a wide variety of useful compounds such as drugs, dyes, agrochemicals and thickening agents. Most reactions take advantage of the high reactivity of the C–Cl bond.