| Synonyms: | posaconazole impurity-91-4;Posaconazole Impurity(R,S,S,R);D-erythro-Pentitol, 2,5-anhydro-1,3,4-trideoxy-2-C-(2,4-difluorophenyl)-4-[[4-[4-[4-[1-[(1S,2R)-1-ethyl-2-hydroxypropyl]-1,5-dihydro-5-oxo-4H-1,2,4-triazol-4-yl]phenyl]-1-piperazinyl]phenoxy]methyl]-1-(1H-1,2,4-triazol-1-yl)-;Posacozole Impurity 20;Posaconazole Impurity 20;PosacozoleImpurity23;2,5-Anhydro-1,3,4-trideoxy-2-C-(2,4-difluorophenyl)-4-[[4-[4-[4-[1-[(1S,2R)-1-ethyl-2-hydroxypropyl]-1,5-dihydro-5-oxo-4H-1,2,4-triazol-4-yl]phenyl]-1-piperazinyl]phenoxy]methyl]-1-(1H-1,2,4-triazol-1-yl)-D-erythro-pentitol;4-(4-((2-((4-(((3R,5R)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4- difluorophenyl)tetrahydrofuran-3-yl)methoxy)phenyl)amino)ethyl) amino)phenyl)-2-((2S,3S)-2-hydroxypentan-3-yl)-2,4-dihydro-3H-1,2, 4-tr |