What are the main uses of 4-Chlorobutanoic acid (CAS: 627-00-9)?

4-Chlorobutanoic acid is primarily used as a precursor in the synthesis of pharmaceuticals, agrochemicals, and industrial chemicals. It is also used as a reagent in organic synthesis, particularly in the modification of other compounds. Additionally, it has applications in the production of surfactants and as a monomer in polymer synthesis.