Used as an alkylating agent in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It plays a key role in introducing ethyl and bromo functional groups into molecules, enabling carbon-chain extension and the formation of complex intermediates. Commonly applied in the synthesis of α-bromo esters and as a reagent in the preparation of carboxylic acid derivatives. Its reactivity makes it valuable in the development of active ingredients in crop protection products and in medicinal chemistry for building molecular frameworks.