Here's what rhymes with pentafluorobenzoic.
benzoic stoic heroic protozoic Words that almost rhyme with pentafluorobenzoic
phobic homesick yogic gnomic moronic aerobic anaerobic trophic chromic clonic biopic cyclonic homophobic hydrophobic eukaryotic arachidonic claustrophobic agoraphobic bobolink goldbrick hypertrophic anticyclonic