118916-24-8 2,2,10,10-Tetrafluoro-13-dehydro-pgi2 2,2,10,10-Tetrafluoro-13-dehydroprostacyclin 4F-Pgi2 Mmm-120 Prosta-5,13-dien-1-oic acid, 6,9-epoxy-2,2,10,10-tetrafluoro-11,15-dihydroxy-, (5Z,9alpha,11alpha,13E,15S)-