4,5-二氢-5-甲基-6-[2-(4-甲氧基苯基)-1H-苯并咪唑-5-基]-3(2H)一哒嗪酮;6-[2-(4-甲氧基苯基)-1H-苯并咪唑-5-基]-5-甲基-4,5-二氢-3(2H)-哒嗪酮;

(RS)-6-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-5-methyl-4,5-dihydropyridazin-3(2H)-one;4,5-Dihydro-6-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-5-methyl-3(2H)-pyridazinone;dl-Pimobendan;2-(4-methoxy-phenyl)-5-(5-methyl-3-oxo-4,5-dihydro-2H-6-pyridazinyl) benzimidazole;rac PiMobendan;