英文别名5-(5-Chloro-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one; 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-(5-chloro-2-ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl; 5-(5-chloro-2-ethoxyphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-7-one; chlorofil; 5-Chloro imidazosagatriazinone; 5-(5-Chloro-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7hpyrazolo(4,3-d)pyrimidin-7-one; 5-(5-chloro-2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one; Sildenafil-003; 5-(5-chloro-2-ethoxyphenyl)-1-methyl-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-7-one; SildefilImpurity13; Sildenafil Impurity 54 
