فهرس المقالات Phthalhydrazide حرية الوصول المقاله صفحة الملخص نص كامل 1 - Melamine trisulfonic acid (MTSA) as an efficient catalyst for the synthesis of triazolo[1,2-a]indazole-triones and some 2H-indazolo[2,1-b]phthalazine-triones Ardeshir Khazaei Mohammad Ali Zolfigol Toktam Faal Rastegar Gholamabbas Chehardoli Shadpour Mallakpour
