application： 3-(Methylthio)-1-propanol can be used as a reactant to prepare:Calix[4]arenes as amino acid chemosensors.Amphiphilic reactive oxygen species (ROS) sensitive diblock copolymers, applicable as nanocarriers for photodynamic therapy and chemotherapy.3-(Methylsulfonyl)propyl thioacetate, which is used in the preparation of dipolar glass polymers for electronic and power applications.