[dī′lȯr·əl ‚thī·ō‚dī′prō·pē·ə‚nāt] (organic chemistry) (C12H25OOCCH2CH2)2S White flakes with a melting point of 40°C; soluble in most organic solvents; used as an antioxidant, plasticizer, and preservative, and in food wraps and edible fats and oils.