123663-49-0 3-Formylamino-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-one Iguratimod Iguratimod [INN] Methanesulfonamide, N-(3-(formylamino)-4-oxo-6-phenoxy-4H-1-benzopyran-7-yl)- T 614 T-614