Mono Chloro Acetic Acid (MCAA) is a colorless, pungent-smelling organic compound with the chemical formula C2H3ClO2. It is a strong acid used in various industrial applications, including the production of agrochemicals, dyes, and pharmaceuticals. MCAA is primarily used in the synthesis of derivatives like carboxymethyl cellulose (CMC), which is widely used as a thickening agent in food, pharmaceuticals, and cosmetics. It is also used in the manufacture of herbicides, surfactants, and in the textile industry for dyeing and printing. Due to its corrosive nature, proper handling and storage are essential to ensure safety during its use.