Leflunomide Standard

Leflunomida; 5-methyl-N-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxamide; 5-Methyl-N-[4-(trifluoromethyl)phenyl]-4-isoxazolecarboxamide; Leflunomidum; 4-Isoxazolecarboxamide, 5-methyl-N-[4-(trifluoromethyl)phenyl]-; a,a,a-Trifluoro-5-methyl-4-isoxazolecarboxy-p-toluidide (USP);