Smiles Code
C\C(=C(/C#N)\C(=O)Nc1ccc(cc1)C(F)(F)F)\O
純度
>95% (HPLC)
網頁展示純度為入庫指導純度值,各批次間存在一定差異,實際純度以收貨為準
DMSO (Slightly), Methanol (Sparingly)
Standards; Enzyme Activators and Inhibitors; Pharmaceutical/API Drug Impurities/Metabolites;
A77 1726 (Leflunomide EP Impurity B) is the active metabolite of Leflunomide, a potent disease-modifying antirheumatic drug used in the treatment of rheumatoid arthritis. LEF-M interferes with dendritic cell function. The second Phase III study evaluating the efficacy of Genzyme’s teriflunomide therapy against relapsing forms of multiple sclerosis found the once-daily oral drug to be no less effective than?injectable interferon beta 1a (Rebif?).