Dithiopyrophosphoric Acid inhibits the replication of influenza virus A/X49 in Madin-Darby canine kidney (MDCK) cells. Also, it is derived from Diethyl Chlorothiophosphate (D444160), which is used in the preparation of various organophosporus insectide including Flupyrazofos (F598620) and Chlorpyrifos (C425300).