3'-Acetyl-5'-fluoro-2'-hydroxy-1H-tetrazole-5-carboxanilide 70977-46-7 EINECS 275-077-9 Eflumast Eflumast [INN] Eflumastum [INN-Latin] N-(3-Acetyl-5-fluoro-2-hydroxyphenyl)-1H-tetrazole-5-carboxamide