1,3-Dioxolane-2-carbonyl fluoride, 4-fluoro-5-oxo-2,4-bis(trifluoromethyl)- 4-Fluoro-5-oxo-2,4-bis(trifluoromethyl)-1,3-dioxolane-2-carbonyl fluoride 7345-49-5 EINECS 230-864-6