Posaconazole Impurity 21 Catalogue B502571 CAS 213381-05-6 M.W 700.79 M.F C37H42F2N8O4 Specifications FAQs 4-(4-(4-(4-(((3S,5R)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4-difluoro phenyl)tetrahydrofuran-3-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-1-((2R,3R)-2-hydroxypentan-3-yl)-1H-1,2,4-triazol-5(4H)-one
