Posaconazole Impurity 7 Catalogue B502557 CAS 159811-30-0 M.W 449.47 M.F C21H21F2N3O4S Specifications FAQs ((3R,5R)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4-difluorophenyl) tetrahydrofuran-3-yl)methyl 4-methylbenzenesulfonate
