4 4 difluoro 1 3 5 7 8 pe July 8, 2019 16 32 64 128 4 5–difluoro‐1 3–dioxolan‐2–one 4 4-difluoro-1 3 5 7 8-pentamethyl-4-bora-3a 4a-diaza-s-indacene 2 4-difluoroacetophenone 4 4 5 5-tetrafluoro-1 3-dioxolan-2-one 4 4 4-trifluoro-1-phenylbutane-1 3-dione
