Organothiophosphates are a class of organophosphorus compounds that contain a carbon-bonded sulfur atom and a phosphorus atom. They have the general structure R-S-PR', where R and R' represent organic groups, which can be alkyl or aryl groups. Organothiophosphates are used in various applications, including as plasticizers, flame retardants, and insecticides. However, some organothiophosphates have been associated with health concerns, such as neurotoxicity, due to their ability to inhibit acetylcholinesterase activity in the body.