Fluconazole Impurity H Catalogue F634238 CAS 150194-52-8 M.W 318.12 M.F C11H10BrF2N3O Specifications FAQs (2RS)-1-bromo-2-(2,4-difluorophenyl)-3-(1H-1,2,4-triazol-1-yl)propan-2-ol