S-(3-Hydroxypropyl) ethanethioate is primarily used in the field of organic synthesis as an intermediate for the production of various chemical compounds. It plays a significant role in the synthesis of thioesters, which are valuable in the development of pharmaceuticals, agrochemicals, and specialty chemicals. Additionally, it is utilized in the preparation of polymers and coatings, where it contributes to the enhancement of material properties such as durability and flexibility. Its application extends to the fragrance industry, where it is involved in the creation of specific aroma compounds.